Sandbox video game with a powerful physics engine
Simple Beat Saber Mod Installer
Endless Sky is a sandbox-style space exploration game
Open source simulation game based on Transport Tycoon Deluxe
Open source clone of Theme Hospital
Toolkit for developing and comparing reinforcement learning algorithms
A simulator for drones, cars and more, built on Unreal Engine
Opengate is a Jumpgate remake
FlightGear Flight Simulator: free open-source multiplatform flight sim
A free transportation simulator game
Soft-body physics simulator
WW2 U-boat simulation
Air traffic control tower and radar simulator (solo + multi-player)
Tugeny is a tournament organization software.
Let it snow on your desktop