Games like Edge Of Galaxy
Games like Edge Of Galaxy include X4: Foundations, 鬼谷八荒 Tale of Immortal, Kenshi, FTL: Faster Than Light, and No Man's Sky. We matched them by the tags players give Edge Of Galaxy on Steam (Exploration, Real Time Tactics, Roguelite, Perma Death, and Economy): closest matches first, and among equally close ones the better-known games.

X4: Foundations
Shared: Exploration · Space · Sandbox

鬼谷八荒 Tale of Immortal
Shared: Management · Sandbox · Exploration

Kenshi
Shared: Sandbox · Survival · Management

FTL: Faster Than Light
Shared: Space · Perma Death · Strategy

No Man's Sky
Shared: Exploration · Space · Survival

Stellaris
Shared: Exploration · Space · Sandbox

Avorion
Shared: Exploration · Sandbox · Space

Starminer
Shared: Economy · Sandbox · Exploration

Oxygen Not Included
Shared: Survival · Management · Sandbox

轮回修仙路
Shared: Exploration · Roguelite · Sandbox

Terraria
Shared: Sandbox · Exploration · Survival

EVE Online
Shared: Exploration · Space · Space Sim

Don't Starve
Shared: Survival · Perma Death · Sandbox

Duskers
Shared: Exploration · Real Time Tactics · Roguelite

Elite Dangerous
Shared: Exploration · Space · Space Sim

Space Engineers
Shared: Sandbox · Space · Survival

Space Haven
Shared: Management · Survival · Space

Blackthorn Arena
Shared: Real Time Tactics · Exploration · Management

Anno 117: Pax Romana
Shared: Exploration · Economy · Sandbox

Kerbal Space Program
Shared: Space · Sandbox · Exploration

Anno 1800
Shared: Economy · Sandbox · Exploration

Starbound
Shared: Sandbox · Space · Survival

Empyrion - Galactic Survival
Shared: Exploration · Space · Survival

X Rebirth
Shared: Space · Sandbox · Economy