Games like Rule No. 1
Games like Rule No. 1 include Counter-Strike 2, Bright Memory, BioShock Infinite, Borderlands 2, and Bright Memory: Infinite. We matched them by the tags players give Rule No. 1 on Steam (FPS, Action, Arena Shooter, Arcade, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

Counter-Strike 2
Shared: FPS · Action · Shooter

Bright Memory
Shared: FPS · Female Protagonist · Action

BioShock Infinite
Shared: Action · FPS · Shooter

Borderlands 2
Shared: Action · FPS · Shooter

Bright Memory: Infinite
Shared: Action · FPS · Female Protagonist

Counter-Strike
Shared: FPS · Action · Shooter

Selaco
Shared: FPS · Female Protagonist · Action

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

Team Fortress 2
Shared: FPS · Action · Shooter

Half-Life 2: Deathmatch
Shared: FPS · Action · Shooter

MULLET MADJACK
Shared: FPS · Action · Arcade

Call of Duty®
Shared: FPS · Action · Shooter

PUBG: BATTLEGROUNDS
Shared: FPS · Shooter · Action

PAYDAY 2
Shared: Action · FPS · Shooter

Devil Daggers
Shared: FPS · Action · Arena Shooter

Half-Life 2
Shared: FPS · Action · Shooter

SUPERHOT
Shared: FPS · Action · Shooter

Beyond Citadel
Shared: FPS · Female Protagonist · Shooter

Apex Legends™
Shared: FPS · Action · Shooter

Aimlabs
Shared: FPS · Action · Shooter

Half-Life: Alyx
Shared: FPS · Female Protagonist · Action

Severed Steel
Shared: FPS · Action · Female Protagonist

THE FINALS
Shared: FPS · Action · Shooter

Swarmlake
Shared: FPS · Action · Arcade

