Games like X-COM: Terror From the Deep for the Steam Machine
Matched by shared genres and a comparable Steam Machine verdict — estimated or community-reported unless labeled “measured”.

X-COM: UFO Defense
Compatibility issueCompatibility issueNot yet tested
Strategy

X-COM: Apocalypse
Compatibility issueCompatibility issueNot yet tested
Strategy

XCOM: Enemy Unknown
Runs greatPlayable, with caveatsNot yet tested
Strategy

X-COM: Enforcer
Runs greatPlayable, with caveatsNot yet tested
Strategy

X-COM: Interceptor
Not yet testedNot yet testedNot yet tested
Strategy

XCOM: Chimera Squad
Runs greatPlayable, with caveatsNot yet tested
Strategy

XCOM 2
Runs greatPlayable, with caveatsNot yet tested
Strategy

UFO: Aftershock
Compatibility issueCompatibility issueNot yet tested
Strategy

Company of Heroes: Opposing Fronts
Compatibility issueCompatibility issueNot yet tested
Action · Strategy

Arma 2
Compatibility issueCompatibility issueNot yet tested
Action · Simulation · Strategy

Warhammer 40,000: Dawn of War II: Retribution
Compatibility issueCompatibility issueNot yet tested
Strategy

Civilization IV: Beyond the Sword
Compatibility issueCompatibility issueNot yet tested
Strategy

Warhammer 40,000: Dawn of War – Winter Assault
Compatibility issueCompatibility issueNot yet tested
Strategy

Nexus - The Jupiter Incident
Compatibility issueCompatibility issueNot yet tested
Indie · Simulation · Strategy

RISK: Factions
Compatibility issueCompatibility issueNot yet tested
Strategy

Joint Task Force
Compatibility issueCompatibility issueNot yet tested
Action · Strategy

Sid Meier's Civilization III Complete
Compatibility issueCompatibility issueNot yet tested
Strategy

RollerCoaster Tycoon 3: Platinum
Compatibility issueCompatibility issueNot yet tested
Simulation · Strategy

X3: Reunion
Compatibility issueCompatibility issueNot yet tested
Strategy

Heroes of Might & Magic V
Compatibility issueCompatibility issueNot yet tested
Strategy

X2: The Threat
Compatibility issueCompatibility issueNot yet tested
Strategy

Heroes of Might & Magic V: Tribes of the East
Compatibility issueCompatibility issueNot yet tested
Strategy

Ghost Master
Compatibility issueCompatibility issueNot yet tested
Strategy

Disciples II: Rise of the Elves
Compatibility issueCompatibility issueNot yet tested
Strategy