They Are Billions
Jan 22, 2026 7 months ago
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?
What it’s like
They Are Billions offers a tense, survival-focused twist on the real-time strategy genre, blending city-building with tower defense mechanics. Players manage resources and infrastructure to construct a defensible colony while fending off overwhelming, escalating waves of infected enemies. The experience is defined by high stakes and strategic depth rather than narrative flair; the premise serves as a backdrop for systemic challenge. Atmosphere is thick with steampunk aesthetics and post-apocalyptic dread, amplified by a dynamic soundtrack that mirrors the rising tension of each defense cycle. Progression is driven by unlocking technologies and mastering complex unit compositions across multiple scenarios. While the core loop is addictive, the game demands rigorous planning and adaptability, rewarding players who can balance expansion with fortification under extreme pressure.
Strong in Difficulty / ChallengeGameplay / MechanicsAtmosphere / MoodAudio / MusicCombatProgression / ReplayabilitySimulation / ManagementSystems Depth / Build VarietyVisuals / Art
Keep in mind This title is notoriously unforgiving, featuring a steep learning curve and 'ironman' style permadeath that may frustrate players seeking casual relaxation or forgiving difficulty settings. Additionally, the PC version offers significantly more content and polish than console ports, which often lack key features like campaign modes.
AI-generated from catalog data, informed by reviews from metacritic.com, gamespot.com, steamcommunity.com, gamecritix.co.uk, opencritic.com, reddit.com.
Screenshots
Releases
| Platform | Region | Type | Date |
|---|---|---|---|
| PC (Microsoft Windows) | Worldwide | Full release | Dec 13, 20179 years ago |
| PlayStation 4 | Worldwide | Full release | Jun 18, 20197 years ago |
| Xbox One | Worldwide | Full release | Jun 18, 20197 years ago |
| Nintendo Switch 2 | Worldwide | Full release | Jan 22, 20267 months ago |