Games like No Witnesses
Games like No Witnesses include PAYDAY 2, Borderlands 3, PUBG: BATTLEGROUNDS, Borderlands 2, and Starship Troopers: Extermination. We matched them by the tags players give No Witnesses on Steam (Action, RPG, Strategy, Arcade, and Party Game): closest matches first, and among equally close ones the better-known games.

PAYDAY 2
Shared: Action · FPS · RPG

Borderlands 3
Shared: RPG · FPS · Action

PUBG: BATTLEGROUNDS
Shared: Action · FPS · Multiplayer

Borderlands 2
Shared: Action · RPG · FPS

Starship Troopers: Extermination
Shared: Action · FPS · Online Co-Op

Left 4 Dead 2
Shared: Action · FPS · Multiplayer

Gunfire Reborn
Shared: FPS · Action · RPG

Orcs Must Die! 2
Shared: Action · Strategy · RPG

Among Us
Shared: Social Deduction · Party Game · Online Co-Op

Mount & Blade II: Bannerlord
Shared: Strategy · RPG · Action

Paladins®
Shared: Action · FPS · Multiplayer

Insurgency
Shared: Action · FPS · Strategy

ORION: Prelude
Shared: Action · FPS · Online Co-Op

Borderlands: The Pre-Sequel
Shared: Action · FPS · RPG

MONSTER HUNTER RISE
Shared: Action · RPG · Online Co-Op

Freeman: Guerrilla Warfare
Shared: Action · Strategy · RPG

Marvel Rivals
Shared: Action · Multiplayer · RPG

Feign
Shared: RPG · Party Game · Social Deduction

PAYDAY™ The Heist
Shared: Action · FPS · Multiplayer

How to Fish
Shared: Online Co-Op · Action · Multiplayer

Mount & Blade: Warband
Shared: RPG · Strategy · Action

Sanctum 2
Shared: Action · Strategy · FPS

Bloons TD 6
Shared: Strategy · Multiplayer · Online Co-Op

Perfect Heist 2
Shared: Action · Strategy · Multiplayer