LINUX BUILD NOW AVAILABLE! Steam customers can now publish or subscribe to the to the best prisons from
Prison Architect Alpha 1020:09

Prison Architect Alpha 10

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!

Steam Workshop

You can now share your prisons online via the Steam Workshop, accessible from the main menu (Steam version only).  You can publish your current prison by giving it a name and clicking on Publish.  Alternatively, you can browse the Prison Architect workshop and subscribe to other people's prisons.  Subscribed prisons will show up in the workshop window and can be played at any time by clicking Play.  Use the Steam Workshop itself to set descriptions, metadata, and to manage your published prisons.

Linux Availability

Prison Architect is now available for Linux, via Steam or as a standalone download.  The development team have targeted Ubuntu 12.04 and later (32 or 64 bit) for now, with wider compatibility coming in future alphas.  The game should work fine on other distros, but please let us know if you have problems.

Note: Prison Architect is not currently compatible with Debian (Stable), because the game requires glibc 2.15 or greater.

New anger model

The system for determining when prisoners become angry and misbehave has been totally overhauled.  There is now a "Thermometer" which represents the "danger level" of your prison. A high "temperature" will lead to fights. All prisoners have a "boiling point", which represents the temperature at which they will kick off.  Max sec prisoners will tend to have a lower boiling point, meaning they will kick off earlier.  This thermometer is visually represented in the top toolbar, showing the current temperature, rate of change and factors affecting the danger level of your prison. The factors include the following:

  • (increase) angry that the prisoner's needs are not being met
  • (increase) prisoners are locked up for no reason
  • (increase) riot police on site
  • (increase) fight / riot occurring nearby
  • (increase) recent death
  • (decrease) prisoners who feel they are well treated (all needs met)
  • (decrease) guards stationed in the area
  • (decrease) recent punishments (deterrent)


If the "temperature" of your prison rises too high, prisoners will begin to riot. This raises the temperature further, resulting in a feedback loop which can push the entire prison into a riot.  Prisoners who are rioting will capture their cell block, and will defend it against your guards and riot police.  Rioting prisoners will smash down internal doors, freeing their cellmates and spreading the riot to neighbouring cell blocks.  Your guards and staff will not willingly enter a captured sector generally because it is too dangerous.

New Emergency services: Riot police, Paramedics

To deal with riots, you can now call in Riot Police. These guys are heavily armoured and will retake the captured sectors.  You can control them using the Emergency Callouts unit list on the right of the screen, or by drag-selecting.  Paramedics will heal anyone injured nearby.  You can dismiss emergency callout units by clicking on the red X next to their unit icon

Incident markers

When guards spot an incident, they will now "radio in" to alert you of the troubles.  Markers will pop up around the edge of the screen relevant to the direction of the incident and directs you to it.  Clicking on the Marker will quickly bring you to the incident currently happening.

Laundry Improvements

  • Prisoner uniforms now come out of the laundry machines crumpled, and must be ironed before use (requires Ironing Board).
  • Prisoners will now change into their clean uniforms whenever their Clothing need is high.
  • When showering, prisoners will now get undressed only when close to the shower.
  • Fixed: Multiple laundry baskets were being sent to a single sector at the same time.
  • Fixed: Not enough prisoner uniforms were delivered to the prison.
  • Fixed: Laundry baskets sometimes rendered a vertical stripe of random sprites above their position.

New audio work

A ton of new audio elements have been added to the game, especially for angry crowds You will now get lots of audio warning before trouble breaks out. The prison now sounds a lot more dangerous A brand new dynamic music score will play during and after a Riot All objects are now made of a certain material (Wood/Metal etc.) and have appropriate damage sounds


  • There have been significant improvements to direct unit control, i.e. drag selection, movement commands etc.
  • You can no longer build on the very edges of the map, or anywhere on the road
  • Guards and staff can no longer see through walls (i.e. do not reveal fog of war)
  • The Regime report now shows the current time as a horizontal line
  • Prisoners will now sleep when in their cells at any time between 10pm and 8am, if they need to
  • All consumables are now delivered in batches, once per hour (ingredients/foodtrays/uniforms/metal/bleach)
  • Workmen can now unload anything from delivery trucks. This fixes bugs where items were left blocking the road
  • Prisoners can now receive up to 3 visitors in a single group
  • Fixed: Laundry/Workshop/Kitchen objects could not be dismantled because the job was wrongly assigned to prisoners
  • Fixed: New construction jobs are often wrongly tagged as "Failed: No materials" for a few seconds
  • Fixed: Visitation does not end during a bangup
  • Fixed: Graphical bug that resulted in the bottom of some sprites being clipped
  • Fixed: Prisoners assigned to work in the Kitchen would sometimes try to bring ingredients in from outside,

resulting in an immediate escape attempt as soon as they were out the front door

  • Fixed: The navigation system would fail when trying to plot routes to the very edges of the map (Note: Although entities can navigate to the very edge, they aren't allowed to build on it)

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