Games like PlayForm: Human Dynamics
Games like PlayForm: Human Dynamics include Garry's Mod, Totally Accurate Battle Simulator, Goat Simulator, Fun with Ragdolls: The Game, and Kerbal Space Program. We matched them by the tags players give PlayForm: Human Dynamics on Steam (Sandbox, Simulation, Physics, Parkour, and Funny): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Sandbox · Physics · Funny

Totally Accurate Battle Simulator
Shared: Sandbox · Simulation · Funny

Goat Simulator
Shared: Simulation · Sandbox · Funny

Fun with Ragdolls: The Game
Shared: Sandbox · Physics · Simulation

Kerbal Space Program
Shared: Simulation · Sandbox · Physics

People Playground
Shared: Sandbox · Physics · Simulation

Scrap Mechanic
Shared: Sandbox · Building · Physics

Human Fall Flat
Shared: Funny · Physics · Sandbox

Space Engineers
Shared: Sandbox · Simulation · Building

Brick Rigs
Shared: Sandbox · Physics · Building

Slime Rancher
Shared: Sandbox · Simulation · Funny

BeamNG.drive
Shared: Simulation · Physics · Sandbox

Poly Bridge
Shared: Simulation · Physics · Sandbox

Wobbly Life
Shared: Sandbox · Simulation · Funny

Fireworks Mania - An Explosive Simulator
Shared: Sandbox · Physics · Building

Kerbal Space Program 2
Shared: Sandbox · Physics · Building

Planet Coaster
Shared: Simulation · Sandbox · Building

Goat Simulator 3
Shared: Sandbox · Physics · Simulation

Bum Simulator
Shared: Simulation · Sandbox · Funny

Turbo Dismount™
Shared: Simulation · Physics · Funny

My Summer Car
Shared: Simulation · Open World · Building

I Am Bread
Shared: Simulation · Physics · Funny

Besiege
Shared: Sandbox · Simulation · Physics

Two Point Hospital
Shared: Simulation · Sandbox · Funny