They Are Billions

They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?

Developer: Numantian Games.

Tags: Solo, Base-Building, Colony Sim, Strategy.

Steam reviews: Very Positive (85% of 48,765).

Price: $29.99.

Released 2019-06-18.

Last updated 2026-01-22.

They Are Billions on Game Goose · Steam store page

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