Games like DOOM 64
Games like DOOM 64 include DOOM + DOOM II, DOOM, DOOM Eternal, Half-Life, and Quake. We matched them by the tags players give DOOM 64 on Steam (Action, FPS, Classic, 1990's, and Retro): closest matches first, and among equally close ones the better-known games.

DOOM + DOOM II
Shared: FPS · Classic · Action

DOOM
Shared: FPS · Action · Gore

DOOM Eternal
Shared: FPS · Action · Gore

Half-Life
Shared: FPS · Classic · 1990's

Quake
Shared: FPS · Action · Classic

DUSK
Shared: FPS · Retro · Boomer Shooter

Quake II
Shared: FPS · Action · Classic

Warhammer 40,000: Boltgun
Shared: FPS · Action · Retro

Half-Life 2
Shared: Action · FPS · Classic

Half-Life: Opposing Force
Shared: Action · FPS · Classic

Duke Nukem 3D: 20th Anniversary World Tour
Shared: FPS · Classic · Action

Black Mesa
Shared: FPS · Action · Classic

Counter-Strike
Shared: Action · FPS · Classic

Trepang2
Shared: FPS · Action · Shooter

ULTRAKILL
Shared: FPS · Gore · Boomer Shooter

Prodeus
Shared: FPS · Action · Retro

DOOM 3
Shared: FPS · Action · Classic

Call of Duty®
Shared: FPS · Action · Shooter

CULTIC
Shared: FPS · Action · Boomer Shooter

Half-Life: Blue Shift
Shared: Action · FPS · Classic

F.E.A.R.
Shared: FPS · Action · Classic

Wolfenstein II: The New Colossus
Shared: Action · FPS · Gore

DOOM: The Dark Ages
Shared: Action · FPS · Gore

HROT
Shared: FPS · Retro · Action