Games like Without Pain
Games like Without Pain include PUBG: BATTLEGROUNDS, Plague Inc: Evolved, Left 4 Dead 2, Russian Life Simulator, and DayZ. We matched them by the tags players give Without Pain on Steam (Casual, Simulation, Action, Shooter, and 2D): closest matches first, and among equally close ones the better-known games.

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

Plague Inc: Evolved
Shared: Simulation · Casual · Indie

Left 4 Dead 2
Shared: Shooter · Action · Zombies

Russian Life Simulator
Shared: Simulation · 2D · Action

DayZ
Shared: Survival · Shooter · Zombies

The Forest
Shared: Horror · Survival · Action

This War of Mine
Shared: Simulation · War · Survival

ShellShock Live
Shared: Action · 2D · Casual

Game Dev Tycoon
Shared: Simulation · Casual · Indie

Arma 3
Shared: Action · Simulation · Shooter

Sparkle 2 Evo
Shared: Casual · Simulation · Action

[Chillas Art] The Convenience Store
Shared: Simulation · Casual · Horror

The Final Station
Shared: 2D · Indie · Action

Notes of Soul
Shared: Action · Horror · Casual

Totally Accurate Battle Simulator
Shared: Simulation · War · Indie

The Walking Dead: Saints & Sinners
Shared: Action · Horror · Shooter

Resident Evil 4 (2005)
Shared: Action · Horror · Zombies

Cookie Clicker
Shared: Casual · Horror · Indie

The Escapists
Shared: Simulation · 2D · Action

Barotrauma
Shared: 2D · Simulation · Survival

KovaaK's
Shared: Action · Simulation · Shooter

Dictators:No Peace Countryballs
Shared: Simulation · Casual · 2D

Left 4 Dead
Shared: Action · Shooter · Horror

Deadlight
Shared: Action · Indie · Zombies