They Are Billions sales estimate

They Are Billions is a strategy game by Numantian Games, released on Steam on June 18, 2019 at $29.99. It has 46,424 Steam reviews (Very Positive, 85% positive). Markan estimates it has sold between 1.2M and 2.8M copies on Steam, for $12 million to $29 million in net revenue.

Estimated lifetime sales and revenue

	Low	Medium	High
Copies sold	1,160,600	1,996,232	2,785,440
Net revenue (USD)	$12,104,272	$20,819,347	$29,050,252

Steam doesn't publish sales. These estimates multiply the number of reviews by a factor that depends on the release year (the Boxleiter method). Net revenue is what's left of list price × sales after refunds, regional pricing, discounts, sales tax and Steam's 30% cut, before any publisher's share. Treat them as a ballpark for comparing games, not as reported figures.

Steam facts

Developer	Numantian Games
Publisher	Numantian Games
Release date	June 18, 2019
Price	$29.99 (US list price)
Reviews	46,424 · Very Positive · 85% positive
Genres	Strategy
Platforms	Windows
Links	Steam store page · Website

Base BuildingBuildingCity BuilderColony SimDifficultIndieIsometricManagementMultiplayerPost-apocalypticReal-Time with PauseResource ManagementRTSSingleplayerSteampunkStrategySurvivalTacticalTower DefenseZombies

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?From the Steam store page

Games like They Are Billions

Steam games that share the most distinctive tags with They Are Billions, with their own sales estimates.

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Steam IDs: 644930, 1272320, 323190, 2607060, 3066310, 2768380, 2927780, 2432940

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Data from Steam, last updated by Markan on 2026-11-11.