Games like UFO: Aftershock
Games like UFO: Aftershock include FTL: Faster Than Light, Stellaris, XCOM: Enemy Unknown, Aliens: Dark Descent, and Sid Meier's Civilization®: Beyond Earth™. We matched them by the tags players give UFO: Aftershock on Steam (Strategy, Sci-fi, Aliens, Tactical, and Space): closest matches first, and among equally close ones the better-known games.
FTL: Faster Than Light
Shared: Strategy · Sci-fi · Space
Stellaris
Shared: Strategy · Sci-fi · Space
XCOM: Enemy Unknown
Shared: Strategy · Sci-fi · Tactical
Aliens: Dark Descent
Shared: Strategy · Tactical · Sci-fi
Sid Meier's Civilization®: Beyond Earth™
Shared: Strategy · Sci-fi · Space
STAR WARS™ Empire at War - Gold Pack
Shared: Strategy · Sci-fi · Space
XCOM®: Chimera Squad
Shared: Strategy · Aliens · Sci-fi
XCOM 2
Shared: Strategy · Tactical · Sci-fi
Sins of a Solar Empire II
Shared: Strategy · Space · Sci-fi
Battlefleet Gothic: Armada (Classic)
Shared: Strategy · Sci-fi · Space
Starship Troopers: Terran Command
Shared: Strategy · Tactical · Sci-fi
Homeworld 3
Shared: Strategy · Sci-fi · Space
BattleTech
Shared: Strategy · Sci-fi · Tactical
Crying Suns
Shared: Strategy · Space · Sci-fi
Battlefleet Gothic: Armada 2
Shared: Strategy · Space · Sci-fi
The Bureau: XCOM Declassified
Shared: Sci-fi · Tactical · Strategy
ENDLESS Space™ 2
Shared: Strategy · Sci-fi · Space
Homeworld Remastered Collection
Shared: Strategy · Sci-fi · Space
Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Strategy · Space
X-COM: Apocalypse
Shared: Strategy · Sci-fi · Tactical
UFO: Aftermath
Shared: Strategy · Tactical · Aliens
STAR WARS Zero Company™
Shared: Sci-fi · Strategy · Tactical
Sid Meier's Starships
Shared: Strategy · Sci-fi · Space
The Red Solstice
Shared: Strategy · Sci-fi · Tactical