Games like OM6N
Games like OM6N include DOOM, DOOM Eternal, METRO 2033 Redux, Trepang2, and Ready or Not. We matched them by the tags players give OM6N on Steam (FPS, Horror, Boomer Shooter, Action, and Atmospheric): closest matches first, and among equally close ones the better-known games.
DOOM
Shared: FPS · Action · Shooter
DOOM Eternal
Shared: FPS · Action · Gore
METRO 2033 Redux
Shared: FPS · Horror · Atmospheric
Trepang2
Shared: FPS · Horror · Shooter
Ready or Not
Shared: FPS · Shooter · Horror
METRO Last Light Redux
Shared: FPS · Action · Atmospheric
BioShock Infinite
Shared: FPS · Action · Shooter
Black Mesa
Shared: FPS · Action · Shooter
Metro Exodus
Shared: FPS · Horror · Atmospheric
Left 4 Dead 2
Shared: FPS · Shooter · Action
CULTIC
Shared: FPS · Boomer Shooter · Action
DUSK
Shared: FPS · Boomer Shooter · Horror
Half-Life 2
Shared: FPS · Action · Shooter
Serious Sam: Siberian Mayhem
Shared: Boomer Shooter · Action · Shooter
DOOM: The Dark Ages
Shared: FPS · Action · Demons
Half-Life: Alyx
Shared: FPS · Horror · Shooter
BioShock™
Shared: FPS · Atmospheric · Action
BioShock™ Remastered
Shared: FPS · Horror · Atmospheric
Metal: Hellsinger
Shared: FPS · Atmospheric · Action
DOOM 3
Shared: FPS · Horror · Action
F.E.A.R.
Shared: FPS · Horror · Action
Call of Duty®
Shared: FPS · Action · Shooter
Resident Evil Village
Shared: Horror · Action · FPS