Games like They Are Billions
They Are Billions is a colony RTS that ends when the horde finds the hole you left in the wall — a campaign of postponing that minute.
Liked They Are Billions? Each game below says what it keeps from it and what it changes.
Steam data checked Aug 17, 2026 · How matches are scored
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Smaller games found on Steam
These share a lot with They Are Billions on Steam, but Shypiard has not written their profile yet.
What makes it distinctive?
Base-building against a timer of zombies. You expand a colony, then the swarm tests every gap. This is a campaign map rather than a co-op extract or a belt factory, and the next sitting is the hole you left in the south wall.
Who plays They Are Billions?
For players who keep postponing the minute the horde finds the gap in the wall.
Fantasy: Creativity / Optimization. Fantasy is our reading of the game, separate from the Steam review score.
A match rises when it shares the way you play: the loop, the mechanics, the session. A shared mood alone does not put a game at the top. If too little is known, the row is left off.
FAQ
Is this a Steam tag clone list?
No. Tags are one input. Mechanics, fantasy, progression and session structure are classified by Shypiard. If a signal is missing it is skipped.
Why is a famous game missing?
Either Shypiard has not profiled it yet, or it shares too little with They Are Billions to be a fair match. The list is never padded to reach a round number.