Hello Triangle: Build a GPU

GPU-building puzzle

Hello Triangle: Build a GPU is a PC puzzle game about building graphics hardware. Each level gives you a picture to draw and working components such as comparators, adders, multipliers, and registers. You wire them into a circuit, press Run, and watch it draw the picture pixel by pixel.

Circuits, not code

You build hardware rather than write code. There are no loops or functions: to repeat an operation, you build a counter; to do two things at once, you build another unit and use more board space. Each level explains its problem in plain words, and the parts introduced in earlier levels prepare you for later tasks.