PartForge
Build parts out of logic gates, build bigger parts out of those, then wire one up as a robot's brain and watch it drive. The example robot follows a line with two parts made from NAND gates. Open it, change it, or start from nothing. New to logic gates? Start with the two-minute primer and tutorial.
Editing new circuit
How parts are flattened, why every gate waits one tick, and how the robot thinks: How it works →