Games like Underspace
The spiritual successor to Freelancer with a Lovecraftian, sandbox RPG twist. Explore a vast handmade universe with mod support and PvP/co-op multiplayer. You're going to need a bigger ship.
Indie games to play next
Picked to match Underspace on gameplay, themes, and feel.
Chorus
Rodina
Landinar: Into the Void
Univoyager
Between the Stars
Evochron Legacy SE
Outer Wilds
Empyrion - Galactic Survival
Avorion
House of the Dying Sun
Rebel Galaxy
Subdivision Infinity DX
Starpoint Gemini 2
Worlds Of The Future
Space Mercs
The Mystery Of The Moon
Endless Sky
SpaceEngine
No Man's Sky
B.L.U.E.
Starcom: Unknown Space
Interstellar Rift
Rebel Galaxy Outlaw
Space Travellers
Star Age: Space Combat
Starcom: Nexus
Owl Force
PULSAR: Lost Colony
Star Valor