Games like Soul King
Games like Soul King include Warhammer 40,000: Boltgun, MULLET MADJACK, DOOM + DOOM II, Half-Life, and DUSK. We matched them by the tags players give Soul King on Steam (FPS, Arcade, Score Attack, Boomer Shooter, and 1990's): closest matches first, and among equally close ones the better-known games.

Warhammer 40,000: Boltgun
Shared: FPS · Boomer Shooter · Retro

MULLET MADJACK
Shared: FPS · Arcade · Boomer Shooter

DOOM + DOOM II
Shared: FPS · 1990's · Retro

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

DUSK
Shared: FPS · Boomer Shooter · Retro

Aimlabs
Shared: FPS · Action · Score Attack

Selaco
Shared: FPS · Boomer Shooter · Female Protagonist

DOOM 64
Shared: FPS · 1990's · Action

Quake
Shared: FPS · 1990's · Action

ULTRAKILL
Shared: FPS · Boomer Shooter · Retro

SharpShooter3D
Shared: FPS · Boomer Shooter · 1990's

MOUSE: P.I. For Hire
Shared: FPS · Boomer Shooter · Action

Half-Life: Alyx
Shared: FPS · Story Rich · Female Protagonist

Half-Life 2
Shared: FPS · Action · Story Rich

Quake II
Shared: FPS · Boomer Shooter · 1990's

HROT
Shared: FPS · Boomer Shooter · Retro

Call of Duty®
Shared: FPS · Action · Shooter

BioShock Infinite
Shared: FPS · Action · Shooter

Turbo Overkill
Shared: FPS · Boomer Shooter · Action

Counter-Strike 2
Shared: FPS · Action · Shooter

CULTIC
Shared: FPS · Boomer Shooter · Action

Project Warlock II
Shared: Boomer Shooter · FPS · Retro

Ion Fury
Shared: FPS · Boomer Shooter · Retro

Duke Nukem 3D: 20th Anniversary World Tour
Shared: FPS · 1990's · Action