Games like Mad Sector
Games like Mad Sector include DOOM, DOOM Eternal, DOOM + DOOM II, DOOM 64, and Quake. We matched them by the tags players give Mad Sector on Steam (Action, FPS, Classic, Retro, and Shooter): closest matches first, and among equally close ones the better-known games.
DOOM
Shared: FPS · Action · Shooter
DOOM Eternal
Shared: FPS · Action · Gore
DOOM + DOOM II
Shared: FPS · Classic · Action
DOOM 64
Shared: Action · FPS · Classic
Quake
Shared: FPS · Action · Classic
DUSK
Shared: FPS · Retro · Shooter
Hotline Miami
Shared: Action · Indie · Violent
Prodeus
Shared: FPS · Action · Retro
Half-Life 2
Shared: Action · FPS · Classic
Black Mesa
Shared: FPS · Action · Shooter
Serious Sam 4
Shared: Action · FPS · Gore
Trepang2
Shared: FPS · Shooter · Action
Hotline Miami 2: Wrong Number
Shared: Action · Gore · Violent
Half-Life
Shared: FPS · Classic · Action
F.E.A.R.
Shared: FPS · Action · Classic
Halo: The Master Chief Collection
Shared: FPS · Classic · Great Soundtrack
Left 4 Dead 2
Shared: FPS · Action · Shooter
Ready or Not
Shared: FPS · Shooter · Action
HROT
Shared: FPS · Retro · Action
Counter-Strike
Shared: Action · FPS · Classic
DOOM 3
Shared: FPS · Action · Classic
Quake II
Shared: FPS · Action · Classic
ULTRAKILL
Shared: FPS · Gore · Retro
Maximum Action
Shared: Action · FPS · Gore