Moon Bugs, released in 1983, is one of the earliest IBM PC games ever released.
Precision matters here. Moon Bugs is not a DOS game. It is a PC booter. The disk bypasses the operating system entirely and boots straight into the game. No command line. No DOS prompt.
Technically, it is impressive. Despite using CGA, Moon Bugs displays 16 colours instead of the usual 4. Very few CGA titles pulled that off, and almost none did it this early. In 1983, this was pushing the hardware harder than most developers bothered to try.
The gameplay is another story. Moon Bugs follows the familiar Space Invaders, Galaxian, and Defender lineage. Fixed patterns. Predictable enemy behavior. Competent, but routine. You can enjoy it for a while, but it will not surprise you.
If you run it in an emulator, throttle the CPU hard. At modern speeds, it becomes unplayable almost instantly.
For retro computing enthusiasts, Moon Bugs is a genuine curiosity. For modern players, it is mostly a historical artifact rather than a compelling game.






