PlayfeedGames like They Are Billions
by Numantian Games
They Are Billions is an isometric 2D post-apocalyptic RTS survival strategy: building colonies, managing resources and fighting infected swarms. Diplomacy is Not an Option and Cataclismo play most like They Are Billions. Of the 12 closest games below, most share its base building and city builder.
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Ranked by how similar the games actually are, not by sales. Released and Price are remembered for next time.
Closest matches
Diplomacy is Not an Option
Oct 4, 2024 · Door 407
Both: Zombies · Base Building · Colony Sim
Isometric 3D fantasy base-building RTS, stylized low poly. Base building, resource management and combat.
Resource ManagementMedievalHistoricalZombiesBase BuildingColony SimRTSAction RTSDifficultSurvival👍 10,927Cataclismo
Mar 20, 2025 · Digital Sun
Both: City Builder · Base Building · Building
Isometric 3D fantasy strategy city builder, stylized low poly. Building fortresses, defending against waves and resource management.
StrategySimulationCity BuilderBase BuildingGrand StrategyManagementBuildingHistoricalEconomyColony Sim👍 3,899From Glory To Goo
Apr 2, 2024 · Stratagem Blue
Both: Base Building · RTS · Tower Defense
Isometric 3D sci-fi RTS survival colony sim, detailed pixel art. Base building, resource management and defending against waves.
Base BuildingRTSTower DefenseReal-Time with PauseAction RTSResource ManagementColony SimCity BuilderStrategySandbox👍 1,808Infection Free Zone
Apr 11, 2024 · Jutsu Games
Both: Base Building · Zombies · City Builder
Top-down 3D post-apocalyptic city builder survival strategy, realistic 3D graphics. Base building, resource management and defending against zombies.
Early AccessBase BuildingPost-apocalypticZombiesCity BuilderStrategyManagementSurvivalSimulationRTS👍 16,621Becastled
Oct 22, 2025 · Mana Potion Studios
Both: Base Building · City Builder · Building
Isometric 3D fantasy strategy city builder RTS, stylized low poly. Building a castle, growing a settlement and defending against sieges.
Base BuildingStrategyCity BuilderMedievalBuildingRTSColony SimWarMilitarySingleplayer👍 5,357Repterra
Aug 20 · Chute Apps
Both: Base Building · Tower Defense · RTS
Isometric 3D post-apocalyptic base-building survival RTS, stylized 3D graphics. Base building, dinosaur breeding and taming, combat.
Real-Time with PauseDinosaursBase BuildingTower DefenseRTSCity BuilderStrategyPvEResource ManagementIsometric👍 123Endzone - A World Apart
Mar 18, 2021 · Gentlymad Studios
Both: City Builder · Survival · Base Building
Isometric 3D post-apocalyptic city builder survival strategy, realistic gritty. Building settlements, managing resources and surviving environmental threats.
City BuilderSurvivalStrategyPost-apocalypticSimulationBase BuildingIndieColony SimBuildingSandbox👍 8,317Surviving the Aftermath
Nov 16, 2021 · Iceflake Studios
Both: City Builder · Survival · Colony Sim
Top-down 3D post-apocalyptic colony sim survival strategy, realistic gritty 3D. Building and managing a colony, exploring the wasteland, resource management.
StrategySimulationPost-apocalypticCity BuilderSurvivalColony SimBase BuildingBuildingSingleplayerManagement👍 3,195Against the Storm
Dec 8, 2023 · Eremite Games
Both: City Builder · Base Building · Building
Top-down 3D fantasy roguelite city builder, stylized 3D. Building settlements, managing resources and upgrading meta-progression.
StrategyCity BuilderSimulationBase BuildingBuildingGrand StrategyManagementResource ManagementColony SimHistorical👍 33,367