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Don't let the system break you. Survive in the Space Prison by crafting contraband, upgrading your prison cell, fighting alien creatures in turn-based brawls and climbing to the top of the gangster ladder in this social survival.

Post news Report RSS Updated demo & Steam Endless Replayability Fest participation!

Time for your sentence, play our updated public demo now!

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Hello inmates!

The prison gates are still open! Play our public demo NOW!

Interested in the demo? We're preparing a playtest later this month, register to join and share your feedback!

The Steam Endless Replayability Fest has started, and we've updated our demo for the occasion! You can now choose from two gangs to form alliances to escape this place, and we also added more content! The demo will be up until May 20!

The demo is playable in English. Discover the prison and its inmates in the first two days of your sentence!

sp endless replayability partner

Download the demo on the Steam page!


Choose from one of 3 playable races: Human, Ferath, or Nex, each boasting unique perks and skills. Select your crime to determine your set of bonuses and penalties. Engage with fellow inmates to complete their quests and join one of the two rival gangs within the two-day limit! Rats are inmates' most trusted friends, recruit them and explore the darkest prison's corners! Craft and manage tools and contraband to progress in the prison maze!

sp selecting race

You can restart your sentence, select a new race and crime, and try to join the other gang!

This updated demo brings more content to the narration of the early game and adds a few community-based suggestions like the rat healing, the second gang quest, and combat improvement. Don't hesitate to share your ideas with our feature upvoting tool!

sp feature upvote tool may 2024

Demo patch note

Space Prison Demo 3.0 Changelog_10.05.24

  • New Gang! Gravity Fist comes in with a powerful jab! You can now join the more violent gang of brutal brawlers - The Gravity Fist!
    • The Demo includes: A new Gang Intro quest that will allow you to join Gravity Fist. If you’re tough enough, that is.
  • Rat Beds. A new zone in the cell that lets you lay your rats to rest, so they can heal overnight.
  • Weapon Swap. Allows you to wear 2 weapons on you and switch between them in combat so you can adjust your tactics to the situation on the combat arena.
  • Combat Improvements:
    • Party Members labels showing their Portrait, Name and HPs
    • Combatants Portraits are colored and facing different way to differentiate between teams
    • When you hover over a combatant portrait they are highlighted on the arena
  • New Hazards. We've added new Hazards for combat arenas with increased difficulty (but at the same time increased opportunity, if you use them wisely). There will be around 20 in the full game.
  • Resources Rebalance:
    • Hope rebalance
    • Hunger rebalance
    • Credits rebalance
  • Animated Main Menu

Have fun and support us by wishlisting the game!

Join our community of convicts on:

See you behind bars!
Wooden Alien Team

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