Demo on Itch and Summer Sale
Today starts the Summer Sale 2025! This is an excellent time to take a break at Trappist-1.

Whether you prefer to take a refreshing plunge on an ice-cold ocean world or just chill in space, Trappist-1 might be just what you need for a holiday.

The updates over the last few months introduced new resources, factories and aliens, a Colony Panel and production info to quickly switch between your colonies and make better decisions, and improvements to trade routes.

The Summer Sale lasts until July 10th, both on Steam and here on Itch.io (Steam key included!).
There is plenty of time to build your first colonies in the free demo. Which is now also available on Itch. Don’t worry, your save games continue in the full game!

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Trappist
Colonize and explore the Trappist-1 solar system in this story-driven colony builder
| Status | Released |
| Author | Sirrah |
| Genre | Simulation |
| Tags | base-building, City Builder, colony, colony-sim, Exploration, resource-management, Sci-fi, Space, Space Sim, Trading |
| Languages | English |
| Accessibility | Interactive tutorial |
More posts
- Multi-monitor support, speed up typewriter effect and 20% off!Feb 13, 2026
- Small bug fix for Storage DepotsNov 07, 2025
- Improvements to build system and declumped hud markersOct 31, 2025
- Improved visuals, camera movement and more fixesSep 29, 2025
- Fixes and improvements for ship movementMay 31, 2025
- Reordering colonies in a trade routeMay 24, 2025
- Jump between colonies and more production infoMay 24, 2025
- New buildings, resources and aliens! And a sale!Mar 24, 2025
- Explore Trappist-1 in the Space Exploration Fest, upcoming patchesSep 02, 2024

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