Games like Underspace
Games like Underspace include Avorion, SpaceBourne 2, EVE Online, Chorus, and Starfield. We matched them by the tags players give Underspace on Steam (3D, Flight, Futuristic, Action, and Space): closest matches first, and among equally close ones the better-known games.
Avorion
Shared: Flight · Space · 3D
SpaceBourne 2
Shared: Flight · 3D · RPG
EVE Online
Shared: Adventure · Space · Space Sim
Chorus
Shared: Action · Adventure · Space
Starfield
Shared: Space · RPG · Open World
Warhammer 40,000: Space Marine 2
Shared: Action · Adventure · Third Person
No Man's Sky
Shared: Space · Open World · Adventure
SpaceEngine
Shared: 3D · Space · Flight
STAR WARS Jedi: Survivor™
Shared: Action · Adventure · Third Person
Elite Dangerous
Shared: Space · Space Sim · Open World
Rebel Galaxy
Shared: Space · Adventure · Action
Crimson Desert Enhanced
Shared: Action · Adventure · Open World
Monster Hunter: World
Shared: Action · Adventure · RPG
Wuthering Waves
Shared: Action · 3D · Adventure
Between the Stars
Shared: Space · Action · RPG
Grand Theft Auto V Legacy
Shared: Action · Open World · Third Person
Starpoint Gemini 2
Shared: Space · Action · RPG
Gothic 1 Remake
Shared: Action · Adventure · RPG
Trailmakers
Shared: Space · Action · Flight
The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Adventure · Open World
STAR WARS Jedi: Fallen Order™
Shared: Third Person · Action · Open World
Middle-earth: Shadow of War
Shared: Action · Adventure · RPG
God of War
Shared: Action · Adventure · Third Person
Middle-earth™: Shadow of Mordor™
Shared: Action · Adventure · Third Person