Like the rest of the entries with the ZZZ-UNK prefix, this piece corresponds to an experiment of not fully verified status or authorship within the preservation archive: its name indicates it's a technical demonstration centered on simulating the gravity physics that made Atari's 1982 arcade Gravitar famous, likely designed to test a physics engine before applying it to a complete game. This kind of technical demo is common currency in the retro system programming scene: pieces that don't aim to be fully playable from start to finish, but to demonstrate that a particular mechanic — in this case, gravity simulation — works correctly on the hardware.
If you liked this one
