Games like Flatspace
Games like Flatspace include Aimlabs, Warframe, Endless Sky, War Thunder, and Once Human. We matched them by the tags players give Flatspace on Steam (Action, Free to Play, Indie, RPG, and Adventure): closest matches first, and among equally close ones the better-known games.
Aimlabs
Shared: Free to Play · Action · Simulation
Warframe
Shared: Free to Play · Action · RPG
Endless Sky
Shared: Free to Play · Space · Simulation
War Thunder
Shared: Free to Play · Action · Simulation
Once Human
Shared: Free to Play · Action · Adventure
Wuthering Waves
Shared: Free to Play · Action · RPG
Neverwinter
Shared: Free to Play · RPG · Action
Between the Stars
Shared: Action · RPG · Indie
鬼谷八荒 Tale of Immortal
Shared: Simulation · RPG · Action
Space Pirates And Zombies 2
Shared: Action · Indie · Space
Where Winds Meet
Shared: Free to Play · Adventure · Indie
Marvel Rivals
Shared: Free to Play · Action · RPG
Honkai Impact 3rd
Shared: Free to Play · Action · RPG
Blue Protocol: Star Resonance
Shared: Action · Free to Play · Adventure
Deliver Us The Moon
Shared: Action · Indie · Adventure
Warhammer 40,000: Inquisitor - Martyr
Shared: Action · RPG · Adventure
Idle Champions of the Forgotten Realms
Shared: Free to Play · Adventure · Indie
Rebel Galaxy
Shared: RPG · Space · Action
The First Descendant
Shared: Free to Play · Action · RPG
Trailmakers
Shared: Action · Space · Adventure
SPORE™ Galactic Adventures
Shared: Action · Simulation · Adventure
Mount & Blade II: Bannerlord
Shared: RPG · Action · Simulation
Dust: An Elysian Tail
Shared: Action · Indie · RPG