A downloadable game for Windows, macOS, and Linux

Buy Now$15.00 USD or more

As soon as humanity had the means we sent out an interstellar colony ship. Its design was basic but elegant. And it made it all 40.7 light-years to Trappist-1.

— Ship data files

On arrival at Trappist-1 you control the Ark. A large spaceship/moveable colony and trading hub for your exploration of Trappist-1.

Trappist is a story-driven colony builder with resource management in the Trappist-1 solar system, and a focus on care-free building and story.

It's easy to play and respectful of your time. You'll create and grow multiple colonies in the Trappist-1 solar system, meet new alien friends and explore the mysteries of Trappist.

Trappist is fully playable from beginning to end and is under active development. Leave a comment here or reach out to me on @SirrahGames.

Current features

  • Relaxing gameplay
  • Freely explore the Trappist-1 solar system
  • Meaningful progress even in short game sessions
  • Multiple storylets woven into the main story line about the nature of Trappist-1
  • 8 hours or more to finish all current stories
  • 5 distinct colony sites (including the Ark, a planet and two moons)
  • More than 40 different buildings
  • Over two dozen construction and consumption resources
  • Replace your workforce with robots
  • No money and no road placement, just base building without unnecessary distractions
  • Automated trade routes between your colonies and the Ark
  • Quick to start and no loading screens when switching between colonies
  • Cheat codes and console commands
  • (Skippable) tutorials to explain the controls and game play
  • Different starting conditions. Including a New Game+ where you can start a new game and continue with your Ark from a completed game.

Planned features and continued development

These are some of the features I hope to implement:

  • More colonizable planets
  • More aliens
  • More research projects
  • Improved models and sound effects

Trappist is under active development. But as a solo developer I can't guarantee everything will be implemented, or will be implemented to an extent you might want or expect. I recommend you consider purchasing this game based on its current state alone.

System requirements

  • Windows, Mac OS and Linux are supported
  • 400 MB HDD space
  • An Intel HD 620 integrated GPU or better
  • Any recent-ish GPU will be able to max out the game settings
  • The game should run fine on an average laptop


  • Keyboard and mouse
  • Left-click to select, right-click to give orders
  • Move the camera with wasd or arrow keys, moving the mouse to the screen edges or click-and-drag
  • Touchscreen, including drag and pinch-to-zoom
  • Tutorial and documentation are available from within the game


Buy Now$15.00 USD or more

In order to download this game you must purchase it at or above the minimum price of $15 USD. You will get access to the following files:

trappist-windows.zip 235 MB
Version 0.5.1
trappist-mac.zip 248 MB
Version 0.5.1
trappist-linux.zip 255 MB
Version 0.5.1

Development log

Leave a comment

Log in with itch.io to leave a comment.