ProtoSans10 by Roman Gornitsky is a free geometric techno display font built from rigid, low-resolution forms. Its letters use square corners, even strokes, and sharply rectangular interiors. The result recalls early computer lettering without imitating a dotted bitmap.
Digital title cards are its strongest setting, especially for games and electronic music graphics. The block-built shapes also suit technology branding and event posters, where the lettering can read like part of an interface. That recurring grid logic gives circuit diagrams, pixel art, and other angular imagery a direct connection to the type.