Games like Mars or Die!
Games like Mars or Die! include Oxygen Not Included, RimWorld, Dyson Sphere Program, FTL: Faster Than Light, and Space Engineers. We matched them by the tags players give Mars or Die! on Steam (Strategy, Action, Indie, Tower Defense, and Space): closest matches first, and among equally close ones the better-known games.
Oxygen Not Included
Shared: Base Building · Singleplayer · Strategy
RimWorld
Shared: Strategy · Base Building · Survival
Dyson Sphere Program
Shared: Space · Base Building · Strategy
FTL: Faster Than Light
Shared: Strategy · Space · Indie
Space Engineers
Shared: Space · Survival · Base Building
Taur
Shared: Strategy · Action · Tower Defense
The Alters
Shared: Strategy · Base Building · Survival
Spacebase DF-9
Shared: Strategy · Space · Indie
Plants vs. Zombies GOTY Edition
Shared: Strategy · Tower Defense · Singleplayer
Orcs Must Die!
Shared: Action · Strategy · Tower Defense
Sanctum 2
Shared: Strategy · Tower Defense · Action
They Are Billions
Shared: Strategy · Base Building · Tower Defense
Cosmoteer: Starship Architect & Commander
Shared: Strategy · Space · Indie
Space Haven
Shared: Strategy · Space · Base Building
Planetbase
Shared: Strategy · Space · Base Building
Defense Grid: The Awakening
Shared: Strategy · Tower Defense · Indie
Breathedge
Shared: Space · Indie · Singleplayer
Kingdom Two Crowns
Shared: Tower Defense · Strategy · Singleplayer
Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer
Creeper World 3: Arc Eternal
Shared: Strategy · Tower Defense · Indie
Space Run
Shared: Strategy · Tower Defense · Indie
Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer
The Riftbreaker
Shared: Tower Defense · Base Building · Survival
Reassembly
Shared: Strategy · Space · Action