AnotherFoxGuy

Rigs of Rods is an open source simulator for soft-body physics What makes Rigs of Rods different to most simulators is its unique soft-body physics simulation: Objects are simulated in real-time as flexible soft-body objects, resulting in a very realistic simulation which entirely depends on the ... [More] physical construction of the object. The community contributes greatly to the game, giving it a vast selection of vehicles and terrains from which you can choose. Rigs of Rods is mostly used for simulating vehicles, but it is flexible enough to be suited for other tasks as well. [Less]

Cytopia is a free, open source retro pixel-art city building game with a big focus on mods. It’s based on a custom isometric rendering engine based on SDL2.