Games like Aetherspace
Games like Aetherspace include FTL: Faster Than Light, SMITE®, Ultimate Custom Night, Idle Champions of the Forgotten Realms, and Battle for Wesnoth. We matched them by the tags players give Aetherspace on Steam (Free to Play, Indie, Strategy, and Space): closest matches first, and among equally close ones the better-known games.

FTL: Faster Than Light
Shared: Strategy · Space · Indie

SMITE®
Shared: Free to Play · Strategy · Indie

Ultimate Custom Night
Shared: Free to Play · Strategy · Indie

Idle Champions of the Forgotten Realms
Shared: Free to Play · Strategy · Indie

Battle for Wesnoth
Shared: Free to Play · Strategy · Indie

Real Pool 3D - Poolians
Shared: Free to Play · Indie · Strategy

Age of Conquest IV
Shared: Free to Play · Strategy · Indie

Where Winds Meet
Shared: Free to Play · Indie · Strategy

Sunrider: Mask of Arcadius
Shared: Free to Play · Strategy · Space

Endless Sky
Shared: Free to Play · Space · Indie

Heat Signature
Shared: Indie · Space · Strategy

Magic: The Gathering Arena
Shared: Free to Play · Strategy · Free To Play

Crying Suns
Shared: Strategy · Indie · Space

Unfortunate Spacemen
Shared: Free to Play · Strategy · Indie

Stellaris
Shared: Strategy · Space

GWENT: The Witcher Card Game
Shared: Free to Play · Strategy · Free To Play

Star Trek Online
Shared: Free to Play · Space · Free To Play

Emily is Away
Shared: Free to Play · Indie · Free To Play

Space Pirates And Zombies 2
Shared: Strategy · Space · Indie

Gods and Idols
Shared: Free to Play · Strategy · Indie

StarDrive 2
Shared: Indie · Strategy · Space

Cosmoteer: Starship Architect & Commander
Shared: Space · Indie · Strategy

World of Warships
Shared: Free to Play · Strategy · Free To Play

Path of Exile
Shared: Free to Play · Indie · Free To Play

