Game Updates

Languages: The content of this page is based on Prison Architect Version 1.

This is the Prison Architect version history page, mainly for the PC version of the game. There are a lot of updates, that are missing here!

Prison Architect was originally developed and published by Introversion Software. It is now developed by Double Eleven and published by Paradox Interactive.

Note: Information about patches can be found after expanding sections marked as "contains hotfixes".

PDX & Double11 builds

Version	Release date	Notes	Forum Link	Video Link
Island Bound	2020-06-23	DLC Release contains hotfixes This expansion will allow you to create Island Compounds with no access road. You will have to bring your logistics game to a whole new level with these prisons, as you need to use a variety of new tools to make sure they run as intended. From ferries to helicopters, you will be able to maximize efficiency by linking them to specific deliveries – but be careful, as this also means more access points to sneak in contraband into your prison! Luckily, you will also have new security objects that will allow you to inspect deliveries and prisoners as they enter the prison, or at key Security checkpoints. PATCHES Version Release date Notes Forum Link 1.04 2020-07-20 Hotfix A new patch for PC, Mac and Linux versions, addressing several issues introduced in The Rock and Island Bound updates. Changelog: Reduced the Prisoners’ clothing and Hygiene needs. Fixed an issue that caused supply items to come by batches of one. Planned Objects and Flooring now work outside of Planned Foundation. Cloning a room will no longer double object cost. Fixed an issue that caused the Prison Story “Gabos” to start with missing prisoners. Solved a Mod functionality positioning issue. Fixed an issue that caused occasional crashes when loading a modded save file. 1.03 2020-07-14 Hotfix A new update for the PC, Mac, and Linux version of Prison Architect containing more fixes to issues and bugs, overall improvements based on both players’ and internal feedback and some cool new features for Island Bound! Added new island generator tool New expanded map feature when starting a new prison. Improved The Alcatraz and The Rock premade prisons. Many fixes and improvements (click full changelog link for more information). 1.02 2020-07-02 Hotfix Fixed multiple issues related to AI and deployment as well as added more improvements to island generation on maps with Island Bound DLC. 1.01b 2020-06-29 Hotfix Fixed similar issues that were fixed in 1.01a but addressed just for Mac and Linux versions. 1.01a 2020-06-26 Hotfix Added island generation on expanded map parts, fixed path finding issues and issues causing the game to crash. 1.01 2020-06-24 Hotfix Fixed an issue that was preventing Mac players from launching the game when using a fresh install.		YouTube
The Rock	2020-06-23	Update This expansion will allow you to create Island Compounds with no access road. You will have to bring your logistics game to a whole new level with these prisons, as you need to use a variety of new tools to make sure they run as intended. From ferries to helicopters, you will be able to maximize efficiency by linking them to specific deliveries – but be careful, as this also means more access points to sneak in contraband into your prison! New features: Landscaping options: Placing Water over land tiles Placing land tiles over water tiles Placing utilities over water. Visual Water Blend. Cliff Edge Dynamic Reputations: When prisoners perform certain actions/behavior or spend time in certain areas, they will gain a rising % chance to earn or lose a Reputation trait. With the available reputations being as follows: Deadly Fearless Quick Skilled Fighter Stoical Strong Tough Volatile Expert Fighter Extremely Deadly Extremely Quick Extremely Strong Extremely Tough Extremely Volatile Legendary Escape Artist Workaholic Addiction		Twitch
Cleared for Transfer	2020-05-21	DLC Release Free DLC for Prison Architect PC version that introduces new privileges, giving you leverage to reward good behavior and motivate reform.		YouTube
The Bucket	2020-05-21	Major Update The Bucket free update compliments the Cleared for Transfer free DLC, alongside more of the community requests, new features such as Gymnasium room, improvements, fixes and more. New features: More signs Gymnasium room New objects New floors New walls (Fences with grass!) Sector Grading system Custom Sectors Improvements: Footbridge improvements (can be built over the walls) Room grading for more rooms (Not only cells have grading system now) Prioritization for janitors and gardeners Deployment for Cooks and Doctors and more!		YouTube
Psych Ward: Warden's Edition	2019-11-21	DLC Release New expansion for Prison Architect that introduces the first type of original and unpredictable inmates, new prisoner behavior, and enhanced management features.		YouTube
The Sneezer	2019-11-21	Major Update contains hotfixes New Bridges, Cloning and Planning improvements. Now you can turn your plans into actual construction jobs! See full changelog here New features: Planning overhaul New walls Signs New objects More dog types Bridges Prisoner Transfer changed: Windows Clone tool overhaul Rebalanced daily payments Allowing placement of the flooring on the edges of the map Bug fixes: Taser legacy crash fixed Mail Satchels building up issue fixed PATCHES Version Release date Notes Forum Link 1.02 2020-01-23 Hotfix 1.01 2019-11-27 Hotfix
The Slammer	2019-09-17	Major Update contains hotfixes Deployment overhaul. New items, floors, and walls. Bug fixes and improvements! See full changelog here New features: Deployment overhaul New items, floors and walls Added filters and sort options in the menus New hotkeys New "double click to move" feature Yellow star icons added for new content changed: Added rotation support for more objects Clone tool region increased in size Mutators menu can be accessed mid-game PATCHES Version Release date Notes Forum Link 1.03 2019-10-10 Hotfix 1.02 2019-09-24 Hotfix 1.01 2019-09-18 Hotfix		YouTube
The Clink	2019-06-27	Small Update contains hotfixes First update from Paradox Interactive and Double Eleven. More floor and wall types, bug fixes and improvements! New features: 4 new floors and 4 new wall types Tunnel search option added Guard response option added Changed: Increased the number of foremen that can be hired Added rotation support for more objects Mod support: tileset.png file increased in size New game materials (walls and flooring) is being added to a new file PATCHES Version Release date Notes Forum Link 1.02 2019-06-27 Hotfix - fixed an issue with wrong sprites (prisoners phoning using a container of bleach) and bug with prisoners sitting incorrectly by tables. 1.01 2019-06-27 Hotfix - fixed an issue with crashing on start-up.		YouTube

Final releases

Version	Release date	Notes	Forum Link	Video Link
2.7	2018-12-19	Update - Multiplayer update #2 All sandbox features now unlocked for multiplayer.		YouTube
2.6	2018-09-04	Major Update - Multiplayer update #1 It's Prison Architect, with your mates! Get our buddies together into one big mass, co-op prison building love-in. Beware, it's in alpha again, so you may hit some snags...		YouTube
2.5	2018-08-03	Major Update More escape plan behaviours. Watch out where you allow trees to grow because prisoners can now climb them to hop over walls and fences. Keep your prisoners away from the road because the bold can now 'jack the supply trucks. Road barriers and barbed wire might help, but have the medics on standby just in case...
2.4	2018-06-22	Major Update Prisoners now steal uniforms from the laundry and stitch them together to make rope. Now what's a prisoner going to do with rope.... You also get graphs, updated mod support, thousands of bug fixes and roll call, but sadly no doughnuts or moustaches (yet).		YouTube
2.3	2017-12-19	Major Update Feeling brave? Switch to Warden mode, turn on perma-death and architect your prison from the ground. Stroll through the exercise yards and canteens, clipboard in hand, marking up modifications and future plans. Experience your prison from a prisoner's perspective and develop a whole new appreciation of your hell hole - oh and you may want to enlist a guard or two to offer you some protection - not all of those jail birds hold you in high esteem...		YouTube
2.2	2017-06-22	Major Update Fingerless gloves, barrels of fire, placards and picket lines - all signs of a jolly good protest. Democracy is a wonderful thing, unless of course the protest is by your staff who are sick of the tyrannical regime and demand fair pay for a hard days work. We've beefed up the guards need system to include all staff - work them too hard, pay them too little, or expose them to too much danger and their morale will start to drop. Eventually they'll give up on you and walk out. And I wouldn't want to be the boss of a maxsec prison when all the staff walk out...		YouTube
2.1	2016-12-20	Major Update This frosty December, we give you guard needs: no longer can you treat your hard working prison officers as robot gaolers. They're going to need their own toilet and canteen and your staff room is about to get a whole lot busier.... Failure to look after their needs will result in a whole gamut of industrial accident that's going to have a very bad effect on the welfare of your prison.		YouTube
2.0.1	2016-10-03	Minor Update *Sectors may now be marked as 'Access Only' in the Deployment screen. Use this to discourage staff and prisoners from using the marked areas as a short cut. Clicking on a prisoner now brings up the rapsheet directly. This behaviour can be changed in the Game Options menu. Dormitories now require Phone Booths instead of Radios to meet their Quality requirements. We are now collecting anonymised game statistics so that we can make further improvements to the game. You can disable this collection by checking the Disable Analytics option in the Game Options menu. Larger Clone tool size when running with Tools and Cheats enabled.
2.0	2016-08-26	Major Update After six years of development including over 40 monthly updates, this is the final content update for Prison Architect and the final video. We will of course continue fixing bugs and providing support. We are going to take a break for a little while, but we will be back soon with our next game.		YouTube
1.8	2016-07-27	Major Update All good things most come to an end, and next month we wave bye bye to Prison Architect. We're working on the tablet (iPad and Android) version and we'll keep supporting the console version. We'll also carry on fixing bugs and ensuring future hardware compatibility, but it's time to stop actively updating it with new content and move on to new things. For now we've launched the v2.0 features on a steam branch, so if you are willing to brave the bugs, you can dive in early and let us know what you think...		YouTube
1.7	2016-05-27	Major Update The entire Temperature / Weather / Seasons / Hot water system is now optional on starting a new prison.		YouTube
1.6	2016-04-29	Update Enjoy a new method to prioritise jobs and get to grips with thunderstorms and flooding!		YouTube
1.5	2016-03-24	Major Update You spoke, we listened. After a month of tweaking, tuning, tightening and teasing we have managed to stuff even more frames into every unforgiving second. We've made significant performance gains so everyone should enjoy a smoother experience, but bear with us - we've got another month of speed updates to keep us busy over Easter. Following our temperature work last month, Gary has updated the utilities mode to have a new hot water system and if you watch the vid we reveal all about Secret 3D Mode...		YouTube
1.4	2016-03-04	Major Update Update 4 brings you the quick build menu as well as in-game filtering of the most popular steam prisons. If that's not enough you can revel in our new thermodynamic simulation.		YouTube
1.3	2016-01-27	Major Update You can now build guard towers around your prison for an extra level of security, intimidation, and force, hired from the staff menu. These guys will equip themselves with a scoped sniper rifle from the armoury, if you have one. They will then take turns manning the guard towers you have built. Snipers will project 'Suppression' to all prisoners within their line of sight. You can now build secure visitation booths in your visitation room if you choose, instead of the usual tables. A secure visitation booth has a glass panel that separates the inmate from the family member, and they use a phone to talk. If you are a Name in the Game customer, you can now update your bio and create a female prisoner if you wish. Go to http://www.prison-architect.com/register to do this.		YouTube
1.2	2015-12-18	Major Update For the last update of 2015 we've introduced women into prison. Their needs are subtlly different, but the biggest issue you'll face is what to do if a mother turns up with a babe in arms... Merry Christmas; thanks for an incredible 2015 and all the best for 2016 from Mark, Chris and the rest of the Introversion Software team.		YouTube
1.1	2015-11-13	Major Update And we are back! Update 1 has been released. New Feature Additions: Improvements: Prisoner Intake: several different modes of Intake Escape Mode: rebalanced, features added Translations added		YouTube
1.0	2015-10-06	Major Update After five years of development and three years in early access, Introversion Software in conjunction with every single gamer who joined in the alpha is proud to present Prison Architect V1.0 V1 contains a ton of bug fixes, escape mode, story mode, multiple languages, customisable wardens, achievements and a ton of other stuff to get you back in the warden's chair You helped made this happen - take a moment to think about that ;) New Feature Additions: Story Mode Escape Mode Collectables Special Wardens Steam Achievements Translations		YouTube

Alpha builds

Version	Release date	Notes	Forum Link	Video Link
Alpha 36	2015-08-28	Update Following our announcement that we are launching Prison Architect in October, this is your last ever Alpha update video. Chris and Mark will be on stage at EGX in Birmingham, UK at 2pm on 26 September doing a LIVE V1 launch video! This is the last ever alpha video for Prison Architect, and we will be launching version 1.0 in October. But fear not! We are planning to continue the cycle of monthly updates beyond version 1.0, including new videos to go with each update each month. See full changelog here New Feature Additions: Random Events System (Details Here)		YouTube
Alpha 35	2015-07-30	Update Bored of a lifestyle of plentiful holidays and late night boozing sessions with Mark, Chris has decided to put everyone under pressure and commit to a launch in October of this year. There is still much work to be done and we need your opinion on Alpha 35 which launches today and includes a massive update to the gangs system. Prisoners can now trade contraband in the prison for cash and with cash come protection rackets. Gang leaders will actively instruct soldiers and lieutenants to acquire territory in order to extort dollars from the non-affiliated prisoners who want to use the facilities. See full changelog here New Feature Additions: Revamped Gang System Gang Territories Contraband Trading Bug Fixes: Fixed Shop bug (Details Here)		YouTube
Alpha 34	2015-06-30	Update Extra! Extra! Bloody Brawl ends in death as gang members fight over Japanese pornography in prison commissary! We've churned out many, many new features this month - we now include native support for the pictorial Asian languages, a shop which sells snacks, porn and anything else your prisoners may want to buy as well as our first implementation of gangs. To see a photo of Mark's kitten dressed in an orange hoody like our Facebook page. See full changelog here (Details Here)		YouTube
Alpha 33	2015-05-28	Update Turn away from the dark side.... In last month's video we discovered a prison that was so horrible that it gave Chris nightmares. Feeling sorry for the little orange-clothed yardbirds, he invented a whole new system of privileges. Bigger cells, tellys, radios etc. all make prisoners happier and less likely to kick off. Go on - go easy on them for a bit. See full changelog here (Details Here)		YouTube
Alpha 32	2015-04-30	Update We've spent the last month spitting and polishing and have broken our previous bugbash record with over 130 issues fixed. On the plus side the game is less buggy and plays better, but the downside is that I've got nothing to write about here so I though't I'd firm up the launch date for ya! See full changelog here (Details Here)		YouTube
Alpha 31	2015-03-27	Update Deathrow has finally been implemented. Be careful to follow due process to avoid heavy fines! Also, cut down on contraband with the new reception room. See full changelog here New Features: The Lawyer Minimum Cell Size Removal Indeterminate sentences Death Row Execution Reception Bug Fixes: Fixed: The 'criminal negligence' failure case had become broken in alpha 30 - your avatar was not spawned correctly 0007974: [AI & Behaviour] Crash loading game with PhoneBooth redefined to be non-wired by a mod 0007967: [AI & Behaviour] Crash with prisoners unloading from prisoner bus 0007932: [AI & Behaviour] Guards not taking prisoners to (available) solitary cells (Details Here)		YouTube
Alpha 30	2015-02-27	Update Introversion Software Proudly Presents: Prison Utility Tangled Wire Simulator. We've mostly been focussed on the tablet version of Prison Architect (stand by for another mail calling for testers soon), but we haven't neglected our desktop players. We've passed control of prisoner intake back to the player and adjusted the budgets a bit to balance things out. Parole is a lot more sensible and you can no longer murder prisoners by starving them to death in solitary - enjoy! See full changelog here New Features: Prisoner Intake Updated Parole Updated Wire Tidy Mode Grant Cancellation Bug Fixes: Fixed: Prisoners sent to solitary could sometimes end up stuck there forever. Fixed: Extreme performance glitch in the Laundry logistics system, if you had a single extremely large sector with lots (hundreds) of cells. And more. (Details Here)		YouTube
Alpha 29	2015-01-30	Update We're closing in on the end game now and we've conquered one of the big last hurdles - Parole. Build a parole room, set a schedule and let the Warden, Chief and Lawyer battle over a prisoner's future. Get it right, get a little bonus; get it wrong and be slammed with a fiscal penalty for your lefty liberal softly-softly touchy-feely weak on crime, weak on the causes of crime attitude. We've also brought in Libraries and Places of Worship - Enjoy! See full changelog here New Features: Prisoner Parole New Room: Chapel New Reform Program: Spiritual Guidance New Room: Library New Job: Librarian Updated Deliveries System Mod Warning Window Bug Fixes: Fixed: Deployment scheduler doesn't always update live deployment (until end of hour).		YouTube
Alpha 28	2014-12-18	Update Merry Christmas Everyone! It's a shorter month before we all head off to sit around trees and open presents in front of roaring fires, but we've still got one last great update for 2014. We've improved the interface, implemented time-based scheduling for your deployments and added a pied piper moving toilet that suppresses prisoners - enjoy! See full changelog here New Features: User Interface Improvements Sector Targeting Continued Deployment Scheduling Tool Truck Driver Improvements Modding Continued Game Balances Bug Fixes: Fixed: Require at least one informant active to see throw-ins determined by phone tap. Fixed: If there is no infirmary, doctors will now hang out in the delivery area rather than wandering the prison. This probably isn't the fix many of you were hoping for, but this is a prison, not a hospital. Doctors don't randomly wander the halls searching for people to heal in prison. And more. (Details Here)		YouTube
Alpha 27	2014-11-28	Update Quantum tunneling and food delivery do not play well together - that's what we have learnt from your feedback last month, so we've been busting our balls to fix our food system and we've finally fixed it (we hope). From now on PA will map prisoners and kitchens onto specific Canteens, but when the AI gets it wrong you can make changes. We've taken the same approach with scheduling reform classes - the AI'll have a bash at putting the right classes, in the right rooms at the right times - but you can open the scheduler and schedule to your heart's content. Finally we've added a "flag bio" button - if you find one of the bios grossly offensive, you can hit the button and we'll get notified about your concern. See full changelog here New Features: New Food Supply & Demand System Reform Program Scheduler Phone Tap Object Names In The Game: Report Offensive Entry Button Some Game Balancing Bug Fixes: Too many to list here. (Details Here)		YouTube
Alpha 26	2014-10-30	Update - Bugbash #2 It's another bug bash! We've spent the month slogging our way through the bug database and fixing the highest priority issues to being you a slicker, faster, better, less buggy Prison Architect. But that's not all - NOT ONLY have we fixed 39 issues and resolved 550 duplicates, we also present a brand new feature! Tell your mates, put it on Facebook, set twitter on fire, let the world know that Prison Architect now comes with a digital clock. See full changelog here Bug Fixes: Too many to list here. (Details Here)		YouTube
Alpha 25	2014-09-25	Update You've had it too easy for too long... We've heard tales of stable prisons that run themselves overnight and we've decided that no self-respecting strategy game should be this easy. We've introduced new prisoner "reputations" that mean they're not just going to sit still because their needs are met. No, these boys are going to mess things up! Tazer power has been reduced, guards need to attend training classes and prisoners have remembered how to build escape tunnels again. This game just got a whole lot harder... See full changelog here New Features: Prisoner Reputation New Prisoner Categories Escape Tunnels Updated Confidential Informants Updated Game Balances Mod System Updated Many Various Changes Bug Fixes: Too many to list here. (Details Here)		YouTube
Alpha 24	2014-08-29	Update contains hotfixes Shush, you ain't seen me, right? Get me out of this hole and I'll tell you what you want to know..... We've introduced Confidential Informants - Snitches - these guys can help you to root out all the nasties, but be careful, over use them and their fellow prisoners will figure it out and juck 'em. We've also made a giant leap in the mod system - we've made it super easy to mod your own stuff into the game, from churches to ice rinks, if you want it in PA, someone will make it! No longer are there 4 developers working on the game, now it's more like half a million...... See full changelog here New Features: Updated Modding System Confidential Informants Updated Remote Access Systems Some Other Changes PATCHES Version Release date Notes Forum Link Alpha 24c 2014-08-31 Hotfix A hot-fix meant to correct a critical issue that Alpha 24 introduced to the game: Fixed: Manual saves not working properly.		YouTube
Alpha 23	2014-07-31	Update contains hotfixes When the cravings get too bad, just take a stroll to the outer wall... ...and whistle. Contraband now gets thrown over walls and smuggled in the Chef's ingredients. You're gonna need some more dogs! We've also massively beefed up the automation - remote controls, time locks and daisy chaining of door servos will free up your time (and your guards) for more pressing matters. Also, Chris went mad and implemented a load of logic gates - WTF! See full changelog here New Features: Remote Access Systems CCTV Overhaul Logic Circuits Contraband Smuggling Continued Many Various Changes PATCHES Version Release date Notes Forum Link Alpha 23d 2014-07-31 Hotfix A hot-fix meant to correct some critical issues that Alpha 23 introduced to the game: Fixed: New inmates will now use the needs system correctly.		YouTube
Alpha 22	2014-06-27	Update - Bugbash #1 Faster, sleeker and less frustrating: All 5 programmers coded there way through 18 days of bug stomping effort and managed to kill 73 major bugs and resolve over 1600 duplicate issues. Ladies and gentlemen, we present to you: A less buggy version of Alpha 21. See full changelog here New Features: New Construction Material: Clear Indoor Area Narcotics Continued Some Various Changes Bug Fixes: Too many to list here. (Details Here)		YouTube
Alpha 21	2014-05-30	Update I want to get High, so High. Prison life can be tough so who can blame a fella for seeking out a little chemical relief from the strain of daily life? Well, you probably, when you have to start dealing with medical emergencies and violence as the junkies fight over the final wrap. Drug abuse is a tough issue to get right and this is only our first pass. Even so, maybe you can get those methadone programs working and clean up your jail? See full changelog here New Features: Narcotics and Addiction Advanced Regime Control Language Selector Surrendering Many Various Changes Bug Fixes: Fixed: Bank loans no longer count against you in the consideration of bankruptcy. So you can use a bank loan to escape bankruptcy if it is available. Fixed: Army trucks no longer get stuck on locked Road Gates.		YouTube
Alpha 20	2014-04-29	Update You've all had it too easy for too long. Sitting there, building your prisons, not caring about deaths or insolvency. Well NO MORE! We've introduced failure conditions and now, if you f**K up it's game over. We've also graded all prisoners on four scales: Punishment, Reform, Security and Health. You can check these out in the rap sheet and when summed over the whole prison you end up with a score. Lefty-liberal reformist paradise or super-right super-max super bad ass punishment amplifier - you go ahead and max those stats. The Punishment Inspector shall be pleased. See full changelog here New Features: Prisoner Grading Failure Conditions Steam Workshop Finance Continued Many Various Changes Bug Fixes: Fixed: Exports zone would not work correctly if placed above the Deliveries zone, or placed vertically aligned with the Deliveries or garbage zones. Fixed: Having negative cash reserves stopped hourly cash flow from happening. Fixed: Prisoner sentences counted down faster on larger maps, due to the time warp factor used. Fixed: In the "New prison" window, the "Fog of war" and "Continuous intake" tick boxes didn't work properly. And More - (Details Here)		YouTube
Alpha 19	2014-03-27	Update Balance sheets, Cash-flow, P&L, Shares. This month it's all about the greenback. Right from Alpha 1 the finance system has been broken - there's never enough money to do what you want to do, when you want to do it. Well, no more. We've introduced more grants, bank loans and the selling of shares in your prison to raise more funds. The mid game is now much more directed and focussed and really changes the way PA is played. Please let us know what you think! See full changelog here New Features: Financial System Improvements Cash Bonus: Days Without Incident Corporation Taxes Bank Loans Prison Share Scheme Game Rebalancing New Room/Zone: Exports SDL 2.0 Many Various Changes Bug Fixes: Fixed: The reform program 'Scheduler' now ensures there will be a teacher available when picking a time slot. This fixes a bug with the foreman being expected to teach multiple workshop induction classes at once. Fixed: Prisoners working as janitors would stand around in the cleaning cupboard doing nothing, unless you had at least one janitor hired, or if you had very few janitors in a large jail. Fixed: Cutting down a tree near a wall square will no longer demolish that wall square. Fixed: Experience will no longer tick up on dead prisoners. And More - (Details Here)		YouTube
Alpha 18	2014-02-28	Update Until recently you'd be forgiven for thinking that Prison Architect was brought to you by the video games department of the republican party. It's all been about locking them up and keeping them down. BUT NO MORE. We've always wanted PA to be balanced and we've made the first tentative steps into allowing you to reform your prisoners. We've implemented a job-lot of new reform / rehabilitation programs - send them to the doc for some much needed head-shrinking or pop them into a foundation education class and teach them to read. Send them off to the kitchen for a crash course in bun baking or give them the skills to produce beautifully crafted wooden beds. Ahh, the sweet sound of the pitter patter of fresh reformed prisoners...... See full changelog here New Features: Reform and Training Programs Classroom, School Desks, and Teachers Carpenters Table Prisoner Experience Armoury Upgrades User Interface Scaling Many Various Changes Bug Fixes: Fixed: Sometimes very small Laundries / Cleaning Cupboards would not show up in the Deployment/Jobs screen, meaning you could not assign prisoners to them even though they were perfectly valid rooms. Fixed: Armed guards now (sometimes) shout warnings at inmates before firing, unless those inmates are attacking staff or about to escape. Fixed: Face-in-the-game entries are now sorted to the top of the community biographies list. Fixed: Sun shadows on trees were sometimes rendered much too large. And More - (Details Here)		YouTube
Alpha 17	2014-01-31	Update Hoo-Rar. This time we've got bad ass mo-fos with boom sticks. You've asked for them and we have answered the call and delivered shot-gun toting armed guards. These guys are excellent for suppressing your prisoners more raucous behaviors. Stick a couple of these dudes in the canteen or the yard and things'll calm right down. Useful they just wander around looking tough, but hit that weapons free button and things'll get messy - you'll lose so many prisoners that it'll be a game-over event, but don't let that stop you blowing off some steam. See full changelog here New Features: Armed Guards Forestry Zone Objects Tool-bar Filtering Modding changes Bug Fixes: Fixed: Selling finished license plates or wood manually generated only half the correct sale price. Fixed: Subscribing and unsubscribing to your own mod in Steam Workshop will no longer delete your mod from your hard drive. Fixed: The scrollbar in the Staff and Prisoner list screens now works correctly. Fixed: Prisoners can no longer tunnel under lakes. And More - (Details Here)		YouTube
Alpha 16	2014-12-27	Update T'was the night after Christmas and all through the house not a creature was stirring, except for the four riot guards coming in standard 2x2 cover formation through the rear. This update brings you the ability to share the mods through steamworks, segregate whole sections of your prison to be min / max sec and customize the sprite to go with your name in the game entry! See full changelog here New Features: Procedural Landscape Generation Wood Industry Steam Workshop For Mods Full Segregation Support Work / Employment / Industry AI Improvements Bug Fixes: Fixed: Purchasing neighbour plots of land sometimes caused the game to get the road location wrong. Vehicles spawned in the wrong place and construction was blocked in a stripe down the middle of the prison. Fixed: Purchasing land west or north of your prison broke all in-progress escape tunnels. Fixed: Prisoners who are digging escape tunnels will now be rumbled if a guard comes to escort them somewhere. (Previously they were able to keep digging despite being taken to a different place!) Fixed: Some long running prisons had active escape tunnels that were being dug by prisoners who were no longer on site - either dead, escaped or released. And More - (Details Here)		YouTube
Alpha 15	2013-11-29	Update contains hotfixes Introversion Software proudly presents... someone else's work! We've crafted a fully functioning modding system to make it much easier to use the mods that have been created from some of the exceptionally talented people in the community. We've also coded a staff fatigue model that means you'll need to install some common rooms so your guards can recharge their batteries, and our resident guru Johnny, has done some awesome performance enhancements that'll massively improve the size of the prisons that your rig can cope with. See full changelog here New Features: Official Mod Support Major Performance Optimizations Staff Exhaustion Faster Clock Speed Edge-of-Screen Mouse Scrolling Staff Rooms Bug Fixes: Fixed: Many types of irrelevant equipment will no longer be smuggled into your prison. E.g. Mop, Rake, Hose, Leash, etcetera. Fixed: Power lines were rendered without colour once you'd built more than four power stations. Fixed: Not all of the Complaints thought bubbles were displaying correctly. Fixed: Some invalid jobs would appear at the top left of the map as a price. PATCHES Version Release date Notes Forum Link Alpha 15c 2013-12-02 Hotfix A hotfix released to address a bug that was introduced into the game from Alpha 15: Fixed: Contraband was not being generated. Alpha 15b 2013-11-29 Hotfix A hotfix that was immediately released to address a bug that was introduced into the game from Alpha 15: Fixed: Players were unable to cancel any new jobs they created using right click.		YouTube
Alpha 14	2013-10-02	Update contains hotfixes Do ya like Dawgs? This time around it's all about those furry little sniffing machines - man's best friend. UNLESS you are a dirty prisoner six feet beneath the ground trying to shawshank your way to freedom. Dogs sniff out contraband and tunnels, and should one of your prisoners make a break for it, the handlers will send up a loud cry of "release the hounds" and the dogs will chase down and jump on anyone who shouldn't really be sprinting toward the front gate. They come at a price though - you need a kennel and handlers and they run out of energy pretty quickly so you need to make sure you have enough to do the job. We've also included some pretty punchy performance enhancements in A14. Enjoy it, Chris' wife is birthing another nipper so it's all you're going to get until December! See full changelog here New features: Guard Dogs Kennels Prison Selling Major Performance Optimizations Escape Tunnels, Delivery & Garbage zones, Load & Save screens, Body Types, and Planning Mode all saw updates. Bug Fixes: Fixed: Workers will no longer load and unload garbage in an endless loop. Fixed: The tool-tip regarding guard patrols was being displayed in all kinds of wrong places. Fixed: All entities would drop whatever they were carrying after loading a saved game. PATCHES Version Release date Notes Forum Link Alpha 14h 2013-10-28 Minor Update An interim update meant to correct some issues that Alpha 14 introduced to the game. See full changelog here Optimizations were continued and several bugs were fixed. The next update is said to be Alpha 15, which is expected towards the end of November.		YouTube
Alpha 13	2013-08-29	Update contains hotfixes Dig Dig Dig! This one's all about tunneling. Given a spoon or any other tool-esque item and they'll start from their toilets and keep on digging until they're outside the perimeter. You can find them by searching the prisoner or cell, but it may be worth moving those max sec blocks a little further from the edge of your prisons.....We've also produced a punishment policy table where you can decide the appropriate reaction to an infraction. 2 weeks in the slammer for moaning about the chow? Tough, but don't let us stop you… See full changelog here New features: Prisoners can dig escape tunnels New Policy report to set punishments Changes to Patrol System (details here) New Searching options and other changes (details here) Bug fixes: Fixed: The starting Deliveries and Garbage zones were being defined wrongly (each square added several times to the room) PATCHES Version Release date Notes Forum Link Alpha 13b 2013-09-02 Hotfix "HOTFIX", for some critical path finding bugs that were introduced with Alpha 13. Download location is the usual builds page, although there is no extra paragraph. Just click on the download for alpha 13, even though the listed date there is still 29th of August. (at least as of today, Sept 4th)		YouTube
Alpha 12	2013-07-31	Update Drugs. Booze. Weapons. This alpha is all about contraband. Steal weapons and tools from the workshop, drugs from sick bay or Whiskey and Smokes from the Warden's office. Search a prisoner, a cell, or order a whole prison shakedown and find out who's got what and from whence it came. Careful though, too many unwarranted searches will result in a riot... See full changelog here New features: Theft and Contraband Contraband overlay Contraband Supply and Demand Searching powers Status Effects Some minor features (details here) Bug fixes: Fixed: Released prisoners are now permitted to route through Staff-Only zones on their way out Fixed: Sometimes garbage would never be collected Fixed: Callout units will now show their assigned route even when off screen Fixed: Drains will no longer block doors from closing Fixed: The time buttons on the clock will now highlight the currently selected speed correctly		YouTube
Alpha 11	2013-06-28	Update BRING OUT YOUR DEAD! Alpha 11 brings a host of new features, bug fixes and improvements, not least of which is hearses to take away the unfortunately deceased. Purchase of neighboring plots of land is now possible. We've also added a Time-lapse video capture system so that you can film the construction of your prisons. Get recording, we can't wait to see your videos! See full changelog here New features: Performance improvements & memory leaks Land expansion Time Lapse recording Intelligent tool-bar highlights Prisoner release Some minor features (details here) Bug fixes: clone tool available again sound loop fixes Infirmary available without Doctor		YouTube
Alpha 10	2013-05-30	Update LINUX BUILD NOW AVAILABLE! Steam customers can now publish or subscribe to the to the best prisons from the Architect community. A new danger model improves the realty of riots occurring, and when they do you can brutally oppress the inmates using riot cops with massive batons! See full changelog here New features: Steam Workshop for User Projects Linux version New Anger Model Rioting Riot Police Paramedics New item: Ironing Board for Laundry AI fixes Added lots of audio cues Bug fixes: Fixed AI routing/pathing Starting money fix Workmen stuck building walls		YouTube
Alpha 9	2013-04-24	Update Central to the new version is the concept of Prisoner Employment, and we've been planning this feature for a long time. Prisoners can now perform a variety of jobs around the prison, saving you money on staff and raising money for you by selling goods manufactured by your work force. Prisoners can work in the kitchen, they can clean the prison, and they can work in the laundry and the workshop, both of which are new in Alpha9. They can also take visits from family members in the new visitation rooms. See full changelog here Changes to a lot of in-game icons Added Prisoner Employment: Laundry Workshops (license plate manufacture) Cooking Prison cleaning Also added/changed: Prisoner visitation Food ingredients now stored on floor if out of space Fences connect to walls better Electrical cable and water pipes now come in reels/stacks Bug fixes		YouTube
Alpha 8	2013-03-20	Update Somehow we've achieved the impossible and convinced Valve to Launch the PA Alpha on Steam! We took this opportunity to make a really solid build and fixed 100s of bugs. You'll always be able to update your build from here, but if you prefer you can activate your copy of PA on Steam and get automatic updates. To get your steam key just follow the link in the email used when you bought the game. See full changelog here Steam Release Planning Mode Staff Only Doors Bug fixes		YouTube
Alpha 7	2013-02-21	Update We've fulfilled the name in game and face in game tiers so some prisoners are now personalized. Guards are now the only characters that can open doors. This sounds small, but makes a massive difference to the gameplay. You now have to think a lot more about how many guards to use and where to deploy them. There's also a graphics option menu that should keep a lot of you happy! See full changelog here Custom prisoner names and faces Guards have to open all jail doors New alarm features Game options menu		YouTube
Alpha 6	2013-01-30	Update Alpha 6 introduces prisoner risk categories with coloured uniforms to reflect this. Prisoners now have a criminal history and are classified according to perceived risk, however this is an ESTIMATE and may not be accurate - you'll still need to keep a close eye on the little darlings! We've also adjusted the prisoner intake settings to allow even more customization of the game. See full changelog here Prisoner risk levels Criminal history & prisoner traits new sectors depending on risk levels Improved intake control		YouTube
Alpha 5	2012-12-14	Update This new build has a number of new features ranging from totally new cool stuff to some pretty massive improvements to existing tools. We have new "Staff Only" zones, which Prisoners are not permitted to enter. We have the first emergency service callout - the Fireman - which means you no longer need to watch your prison burn to the ground without being able to do anything about it. And we’ve massively improved the Foundations tool so it's much more intuitive and intelligent to use. See full changelog here Staff-only zones in the Deployment menu Added 911 menu and Firemen Improved Foundations tool		YouTube
Alpha 4	2012-11-19	Update The key change in this version is an overhaul of the Fog Of War system, in response to community feedback. Almost immediately after launching Alpha 3 we began to hear from alpha users that the rooftop style fog-of-war (which blocks out the view of the insides of your prison unless you have Guards watching the area) was annoying because it stopped you from building things - you just couldn't see what you were doing. See full changelog here Bug fixes Updated Fog of War		YouTube
Alpha 3	2012-11-01	Update For this update we've focused on a new system called Fog Of War, which changes the game in a number of ways. Internally we refer to this as the Visibility system, because you now lose visibility of the indoor areas of your jail gradually over time. Your guards are the only staff members who can "unveil" the hidden areas, and if you lose visibility of an area you have no idea what sort of things are going on there. This ties in very closely to the Alpha 2 update, because you now have to use Deployment and Patrols to create pathways for your guards to walk along to ensure your entire jail remains fully visible at all times. See full changelog here Bug fixes new gameplay elements (Fog of War, CCTV)		YouTube
Alpha 2	2012-10-18	Update The first major feature of this new build is the Deployment screen. This shows you a security schematic of your prison and allows you to assign guards to each of your sectors, and to set patrols for them to walk along. This makes locking down your prison a lot easier! We've also fixed a bunch of bugs and introduced an option when creating a new prison which lets you restrict the incoming rate of prisoners so they don't overwhelm you. Rather than receiving a random number every day you will only receive prisoners when you have space. See full changelog here Bugfixes New gameplay elements (Deployment, Sectors, Patrols) Updated room requirements		YouTube
Alpha 1	2012-09-25	First Release - The first public release of Prison Architect. contains hotfixes PATCHES Version Release date Notes Forum Link Alpha 1c 2012-10-03 Update - Second attempt to fix MacOSX 10.6 problems Alpha 1b 2012-09-27 Update - Experimental MacOS build Attempt to fix MacOSX 10.6 problems		YouTube

Useful links

• Prison Architect subforum on Paradox Interactive Forum
• Prison Architect News Hub on Steam
• Prison Architect subforum on Introversion Software forum (archived)