ProtoSans23 by Roman Gornitsky is a free pixel font built from sturdy rectangular strokes and strict right angles. Square openings keep the lettering crisp and mechanical.
Designers working in games, electronic music, and technology will find its early-digital character useful for interface graphics and event posters. The blocky forms also suit album covers and branding for hardware, software, or arcade-inspired products. In a game or app, the letters can become part of the interface itself, echoing tiled icons, status panels, and low-resolution screen graphics.