Games like Alien Hallway
Games like Alien Hallway include Dota 2, X-Morph: Defense, Warhammer 40,000: Dawn of War III, Sanctum 2, and Defense Grid: The Awakening. We matched them by the tags players give Alien Hallway on Steam (MOBA, Strategy, Action, Shooter, and Tower Defense): closest matches first, and among equally close ones the better-known games.
Dota 2
Shared: MOBA · Strategy · Action
X-Morph: Defense
Shared: Strategy · Action · Tower Defense
Warhammer 40,000: Dawn of War III
Shared: Strategy · MOBA · Action
Sanctum 2
Shared: Strategy · Tower Defense · Action
Defense Grid: The Awakening
Shared: Strategy · Tower Defense · Sci-fi
Infested Planet
Shared: Strategy · Action · Tower Defense
Aliens: Dark Descent
Shared: Strategy · Action · Aliens
DG2: Defense Grid 2
Shared: Strategy · Action · Tower Defense
Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Action
The Bureau: XCOM Declassified
Shared: Action · Strategy · Sci-fi
Freeman: Guerrilla Warfare
Shared: Strategy · Action · Shooter
XCOM: Enemy Unknown
Shared: Strategy · Aliens · Sci-fi
Counter-Strike 2
Shared: Shooter · Action · Strategy
Taur
Shared: Strategy · Action · Tower Defense
STAR WARS™ Battlefront™ II
Shared: Shooter · Action · Singleplayer
Orcs Must Die! 2
Shared: Action · Strategy · Tower Defense
Black Mesa
Shared: Action · Shooter · Sci-fi
Natural Selection 2
Shared: Strategy · Action · Aliens
FTL: Faster Than Light
Shared: Strategy · Indie · Sci-fi
STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Shooter · Sci-fi
Awesomenauts
Shared: MOBA · Action · Indie
Orcs Must Die!
Shared: Strategy · Action · Tower Defense
Half-Life 2
Shared: Action · Shooter · Sci-fi
Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer