Finish Factorio

Drive a lorry across Europe at the speed limit and relax; the cult sim from Prague.

Transport Tycoon Deluxe rebuilt as open source and still patched: bigger maps, better trains, no bankruptcy screen.

A survival sandbox where the real danger is the other players; the ArmA mod that started the genre, finished as its own game.

Factorio in first-person 3D; Coffee Stain's conveyor belts.

The deepest simulation in games, now with graphics; losing is fun.

Build rockets, kill Kerbals, learn orbital mechanics by accident.

Eight galaxies, wireframe ships and free trade; the game that invented open-ended space.

Soft-body physics where a car deforms panel by panel; a crash sandbox rather than a championship.