The aesthetic combines Victorian-era technology with a futuristic post-apocalyptic setting. Major Game Modes
is a post-apocalyptic steampunk real-time strategy (RTS) survival game developed by Numantian Games . Originally launched in Early Access in 2017, the game saw its full 1.0 release on June 18, 2019 , on PC via Steam and GOG . Core Gameplay & Mechanics Download They Are Billions PC Game 2019
The game blends city-building, resource management, and horde defense. Players must manage a colony of the last human survivors while defending against massive swarms of up to 20,000 infected units on screen at once. Core Gameplay & Mechanics The game blends city-building,
The core experience where players are dropped into a randomly generated map and must survive for a set number of days until the final mega-horde arrives. Every mission is played in Ironman mode—there are
Every mission is played in Ironman mode—there are no manual save/load points. If a single zombie breaches your defenses and infects a building, it can trigger a "cascade infection" that wipes out hours of progress in minutes.
The 2019 full release significantly expanded the game beyond its original skirmish roots:
A 60-hour story mode featuring 48 missions where players rebuild the human empire under the command of Emperor Quintis Crane.