Space Nerds in Space

Transportation planning and traffic simulation software for creating cities friendlier to walking, biking, and public transit

A work-in-progress, open-source, multi-player city simulation game.

A 2D space exploration, trading and combat game: fly between star systems, take missions, upgrade your ship and get drawn into a sweeping story.

shapez is an open source base building game on Steam inspired by factorio!

Chop Chop, Unity’s official community open project: an action-adventure game that demonstrates a complete game-development workflow.

Written in C++ and using SDL, The Powder Toy is a desktop version of the classic 'falling sand' physics sandbox, it simulates air pressure and velocity as well as heat.