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Game Box for They Are Billions (PC)

They Are Billions PC

They Are Billions is a steampunk real-time strategy where we have to defend a human colony from hordes of zombies. It was developed by Numantian Games, creators of Lords of Xulmia: A Story of Gods and Humans. Our primary objective is to manage and upgrade our base.

Strategy | science fiction | steampunk | RTS | zombie | Isometric view

PC / Windows
They Are Billions cover

developer: Numantian Games

publisher : Numantian Games

Official website

Game mode: single player

game language: English

game release date for PC:


They Are Billions for PC is a steampunk real-time strategy game developed by Numantian Games, creators of Lords of Xulmia: A Story of Gods and Humans.


The game takes place on an alien planet that was colonized by the mankind a long time ago. This civilization is now on the brink of extinction due to a zombie epidemic. A couple of thousands of survivors has to find a way to survive in a world infested by billions of zombies.

Developers combined typical science fiction and horror elements with steampunk influences. Much of the game’s world technology runs on steam and its culture is similar to that of the Victorian era Europe.


They Are Billions for PC is a strategy game where action takes place real-time. We can pause the game anytime we want to give orders. Gameplay is quite different from what we can see in other RTS games. We will spend most of our time on managing and upgrading our colony. We will have to gather resources, build and upgrade buildings, and create an energy network.

Hordes of zombies are a constant threat that we will face. Numantian Games created their own game engine that allows the presence of even twenty thousand units on the map, each of them having its own A.I. Thanks to that, zombies can react to sounds, sights, and will try to avenge their fallen comrades when they will find their bodies.

Only one zombie is enough to infect the entire building. Not reacting quickly enough to such situations will lead to the infestation of our entire colony. We have to build defensive structures like watch towers and walls and recruit and trained mercenaries in order to keep our survivors safe.

Game Modes

They Are Billions for PC offers a single player campaign with all kinds of missions and a survival mode where we end up on a procedurally generated map and have to survive for 100 days.

Expectations: 8.4 / 10 calculated out of 89 players' votes.  

System requirements

PC / Windows

Recommended: Intel Core i5 3.0 GHz, 8 GB RAM, graphic card 4 GB GeForce GTX 670 / Radeon HD 7950 or better, 4 GB HDD, Windows 7/8/10
Minimum: Intel Core 2 Duo 2.0 GHz, 3 GB RAM, graphic card 1 GB GeForce GTX 460 or better, 4 GB HDD, Windows 7/8/10

They Are Billions Game Guide

game guide 01 October 2018

Guide for They Are Billions contains many tips and helpful advice to beat the game and stop waves of zombies. Our walkthrough will help you with game mechanics and survive all 80 days and weeks.