How long is They Are Billions?

They Are Billions takes about 36h 40m to beat the main story, or around 99h 31m with extras.

How long does it take to 100% They Are Billions?

A completionist run of They Are Billions takes about 162h 18m.

75Meta Score

Very Positive85% · 45,304

5.4k

They Are Billions

Role-playing (RPG)Indie Strategy

Developer: Numantian Games|Publisher: Numantian Games, BlitWorks

Playtime

Updated community averages based on player submissions.

Main Story

36h 40m

Main + Extra

99h 31m

Completionist

162h 18m

Media

3 videos + 5 screenshots

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Links

Steam GOG Nintendo PlayStation Official Wikipedia

About This Game

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?

Last updated Mar 7, 2026