Games like Halo: Reach
Games like Halo: Reach include Halo: The Master Chief Collection, Half-Life 2, Black Mesa, Half-Life, and DOOM. We matched them by the tags players give Halo: Reach on Steam (Action, FPS, Sci-fi, Multiplayer, and Classic): closest matches first, and among equally close ones the better-known games.
Halo: The Master Chief Collection
Shared: FPS · Great Soundtrack · Multiplayer
Half-Life 2
Shared: Action · FPS · Sci-fi
Black Mesa
Shared: FPS · Action · Sci-fi
Half-Life
Shared: FPS · Sci-fi · Classic
DOOM
Shared: FPS · Action · Great Soundtrack
Call of Duty®: Black Ops III
Shared: FPS · Action · Multiplayer
Halo Infinite
Shared: FPS · Multiplayer · Action
Call of Duty®
Shared: FPS · Action · Multiplayer
STAR WARS™ Battlefront II (Classic, 2005)
Shared: Action · Multiplayer · Sci-fi
DOOM Eternal
Shared: FPS · Action · Great Soundtrack
STAR WARS™ Republic Commando™
Shared: Action · FPS · Sci-fi
Half-Life: Opposing Force
Shared: Action · FPS · Sci-fi
PAYDAY 2
Shared: Action · FPS · Co-op
Call of Duty® 4: Modern Warfare® (2007)
Shared: Action · FPS · Multiplayer
Call of Duty®: Modern Warfare® 2 (2009)
Shared: Action · FPS · Multiplayer
Titanfall® 2
Shared: FPS · Multiplayer · Action
Red Dead Redemption 2
Shared: Action · Multiplayer · Story Rich
Apex Legends™
Shared: FPS · Multiplayer · Action
Left 4 Dead 2
Shared: FPS · Action · Multiplayer
STAR WARS™ Battlefront™ II
Shared: Multiplayer · Action · Sci-fi
BioShock Infinite
Shared: Action · FPS · Shooter
Far Cry 3
Shared: FPS · Action · Multiplayer
Half-Life: Blue Shift
Shared: Action · FPS · Sci-fi
Counter-Strike
Shared: Action · FPS · Multiplayer