Comet 64
Learn a 1984 home computer and solve puzzles in its assembly language
Comet 64 is set in 1984. You learn to use a made-up home computer, the Comet 64, by reading its operator's manual, which you can open in the game or as a PDF. Then you write programs in its own assembly-like language to solve more than 50 puzzles. Each puzzle gives you inputs and asks you to produce the right outputs. There are also bonus visual puzzles on a grid.
Paid · No login · Desktop · Intermediate
About Comet 64
The game trains careful, step-by-step logic at the level of single instructions. You can improve your solutions to use fewer instructions and cycles, and compare them on leaderboards. It suits players who like reading a manual and working things out.
It is a paid game by Onur Ayas on Steam for Windows, macOS and Linux.
On Breakpoint since 23 Oct 2026.