Games like Medieval Machines Builder
Games like Medieval Machines Builder include Garry's Mod, Besiege, PC Building Simulator, Brick Rigs, and People Playground. We matched them by the tags players give Medieval Machines Builder on Steam (Simulation, Medieval, Destruction, Physics, and Building): closest matches first, and among equally close ones the better-known games.

Garry's Mod
Shared: Physics · Sandbox · Building

Besiege
Shared: Simulation · Destruction · Physics

PC Building Simulator
Shared: Simulation · Building · Immersive Sim

Brick Rigs
Shared: Destruction · Building · Sandbox

People Playground
Shared: Physics · Sandbox · Simulation

BeamNG.drive
Shared: Simulation · Physics · Destruction

House Flipper
Shared: Simulation · Building · Sandbox

Teardown
Shared: Destruction · Physics · Sandbox

Goat Simulator
Shared: Simulation · Physics · Destruction

Medieval Engineers
Shared: Medieval · Building · Physics

Half Sword
Shared: Medieval · Physics · Simulation

Kerbal Space Program
Shared: Simulation · Physics · Sandbox

Totally Accurate Battle Simulator
Shared: Simulation · Sandbox · Physics

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

Space Engineers
Shared: Simulation · Building · Sandbox

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

Poly Bridge
Shared: Simulation · Physics · Building

PowerWash Simulator
Shared: Simulation · First-Person · Sandbox

WorldBox - God Simulator
Shared: Simulation · Sandbox · Destruction

Planet Coaster
Shared: Simulation · Building · Sandbox

Medieval Dynasty
Shared: Medieval · Building · Sandbox

Turbo Dismount™
Shared: Simulation · Destruction · Physics

DrainSim
Shared: Simulation · Physics · First-Person

Universe Sandbox
Shared: Simulation · Physics · Sandbox