Overview System Requirements Reviews Related


They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse? Highlights: - Survival Strategy Game - Real Time with Pause - Randomly Generated Maps - Thousands of Units on Screen - Mouse and Keyboard Support - Weekly Challenge Survive in a randomly generated world where you’ll find different events, weather, geography and infected population in each run. Hordes of zombies keep roaming the world, so chances are one of them will break into a building and spread the infection inside your colony. Don’t get too nervous, this is an RTS game but you can pause it to choose the best strategic decisions: place structures, give orders, consult the game’s information… Be prepared to resist the attack of huge swarms of up to 20,000 infected, don’t let them take over your colony!


Additional information

Published by



(C) 2018 Numantian Games

Developed by

Numantian Games / BlitWorks

Release date


Approximate size

2.72 GB

Age rating

For ages 15 and up




Install on your home Xbox One console plus have access when you’re connected to your Microsoft account.

Publisher Info

They Are Billions support

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