Show HN: I created a Mars colony RPG based on Kim Stanley Robinson's Mars books
ariaalam Sunday, February 08, 2026I built a desktop Mars colony survival game called Underhill, in homage to Kim Stanley Robinson's Mars trilogy. Land on Mars, build solar panels and greenhouses, and try not to pass out during dust storms. Eventually your colonists split into factions: Greens who want to terraform and Reds who want to preserve Mars.
There’s Chill Mode for players that just want to build & hang, and Conflict Mode that introduces the Red v. Green factions. Reds sabotage, the terrain slowly turns green as the world gets more terraformed.
Feedback welcome, especially on performance and gameplay!
Summary
Underhill is a survival horror game set in a mysterious, underground town. Players must navigate the dark and eerie environments, scavenge for resources, and uncover the secrets of the town while fending off hostile entities.
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Summary
underhillgame.com