Trappist (tuxdb.com)

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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/movable 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 with more stories, colonies and improvements coming.

Explore the Trappist-1 solar system

Fly through the Trappist-1 solar system and survey each planet to find the best locations for your colonies.
Discover and excavate alien artifacts hidden in the system and uncover the true purpose of Trappist-1.

Build your colonies

Build colonies on the planets and moons of Trappist-1. Each colony has distinct resources and buildings that are necessary for success.
Fill your cargo ships with the extracted resources and fly them to your manufacturing or population centers. Create automated trading routes for stable production chains across your colonies.
Fly your Ark as a mobile colony or place it strategically as your central trading hub.

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
10 hours or more to finish all current stories
6 distinct colony sites (the Ark, two planets and two moons)
More than 40 different buildings
Over two dozen construction and consumption resources
Replace your workforce with robots
Place buildings on a grid or go gridless at the flip of a switch!
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 customized 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.

Controls

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

Reordering colonies in a trade route

This v1.0.12 update builds on last weeks QoL additions and focuses on the trade routes.

You can now change the order of trade stops within a trade route. This should help with untangling and optimizing trade routes.
Game Description Image

Something else you might notice, the trade routes now use small arrows (instead of dashes) to give a visual indication of the direction of the trade loop.
And when you start a new trade route, or resume a paused route, the cargo ship will always start at the nearest colony.

Thank you all for your feedback!

The changelog for v1.0.12:

- Add buttons to reorder trade stops within a trade route.
- Trade route lines now show the direction of the trade route.
- Scale the trade route line width based on the camera distance and UI scale (ctrl+- and ctrl+=).
- Hide trade route lines while the main menu is displayed.
- On starting or resuming a trade route, the cargo ship will start at the nearest colony.
- On removing the current target stop from a trade route, the cargo ship will immediately continue to the next stop.
- Fix missing tooltip due to an exception while calculating the consumption rate. Especially noticeable when first transferring population to an empty colony while the game is paused.
- Fix the "Move to Colony Hub" action on the colony panel when underwater on Zima.
- Add cheat code (shift + F6) to warp a selected ship to the cursor location. To Enable cheat codes open the console with ~ and type "flag cheatcodes".
- Prevent the "spawn cargo ship" cheat code (F6) from spawning ships in invalid locations.