Games like Pierhead Arcade 2
Games like Pierhead Arcade 2 include Garry's Mod, Goat Simulator, BeamNG.drive, Hard Bullet, and Totally Accurate Battle Simulator. We matched them by the tags players give Pierhead Arcade 2 on Steam (Simulation, Indie, Casual, Arcade, and Early Access): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Casual · Physics

Goat Simulator
Shared: Simulation · Casual · Indie

BeamNG.drive
Shared: Simulation · Physics · Sandbox

Hard Bullet
Shared: VR · Simulation · Indie

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Indie

Kerbal Space Program
Shared: Simulation · Physics · Sandbox

Wobbly Life
Shared: Simulation · Casual · Sandbox

People Playground
Shared: Sandbox · Physics · Simulation

Hot Dogs, Horseshoes & Hand Grenades
Shared: VR · Simulation · Sandbox

VRChat
Shared: VR · Simulation · Early Access

Game Dev Tycoon
Shared: Simulation · Indie · Casual

Tabletop Simulator
Shared: Simulation · VR · Sandbox

BONEWORKS
Shared: VR · Physics · Sandbox

Cooking Simulator VR
Shared: Simulation · Casual · VR

Universe Sandbox
Shared: Simulation · Sandbox · Physics

Pierhead Arcade
Shared: Simulation · Indie · Casual

DrainSim
Shared: Simulation · Casual · Physics

Besiege
Shared: Simulation · Physics · Sandbox

Startup Company
Shared: Simulation · Indie · Casual

Paralives
Shared: Simulation · Indie · Casual

Universe Sandbox
Shared: Simulation · Indie · Sandbox

Surgeon Simulator
Shared: Simulation · Indie · Physics

CarX Drift Racing Online
Shared: Simulation · Sandbox · Physics

Plague Inc: Evolved
Shared: Simulation · Indie · Casual