This content requires the base game in order to play:Prison Architect
Game Description
System Requirements
Activation Details
Undead brings a whole new scenario to Prison Architect: one where the only objective is to survive. Save your inmates and fight off the undead attacks in this new, spooky expansion!
Features list (also available in “Escape Mode”)
Welcome the Graveyard
This brand new Quick Room satisfies your inmates’ needs for Freedom and Comfort, making them feel calmer for 12 hours. Be mindful when you add gravestones though, as they will easily interrupt this peaceful atmosphere…
The Rise of the Dead
In Undead, no one is safe. And there are many ways to become Infected. One inmate can get sick, some others can be bitten by an unfriendly undead, or again a bunch of infected inmates can rise (aka spawn) directly from the Graveyard. Wardens have no power over the Infected units, they will move and act independently in the prison until stopped. Inmates and guards can try and fight them off, but if they fail, they will join the deadly bunch!
Who You Gonna Call? Bounty Hunters!
When things go south (because they will) and your prison can’t hold off the outbreak, call the Bounty Hunter Emergency Service: tough, trained bounty hunters will join your fight against the undead.
New Traps, Techniques, and Weapons
Desperate Times Call for Desperate (and creative) measures. Use Zombie chum to lure the undead, build a walled-off area and lock them inside, or steal that glorious chainsaw you’ve been eyeing for a while: everything is allowed to fight off the horde.
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2025-12-13
Test Your Gaming IQ with YUPLAY and Win
As the holiday season is already nearly here, we prepared a special Christmas Giveaway that would let you test your gaming IQ with YUPLAY and win some awesome prizes while doing it! Make sure to regularly check and follow our YUPLAY X profile in order to be in the know about any possible chances to participate and enter the Christmas Giveaway in a timely manner. Are you up to the challenge and ready to guess some great gaming titles?
Dive Into 2025’s Most Addictive Video Games – Part 2
As you probably know, we separated the most addictive video games blog into 2 dozens of Steam games in almost all of the main gaming genres, so there should be something for everyone to enjoy on it! Now we are here to continue our list and if you checked out the first part of it, you know we made sure to discuss some of the top hit games that recently got released. We assure you there will not be bad titles in the second part as well, so let’s head over to the first entry in part 2 immediately!