A satellite game that inverts the usual space-sim deal: the flight computer solves the orbit, and you supply the last number. It runs on real Keplerian mechanics with a low-poly three.js Earth, sitting at zero stars on GitHub Pages. Reducing orbital mechanics to a single human-entered value is either a clever teaching interface or a strange constraint — either way it's a design experiment worth a click.
If you only play oneroadmap raiders— A run-based deckbuilder with actual jokes in it — battling the Stakeholder Hydra sounds like the most entertaining way to spend an evening on this list.
Passed on a stack of interchangeable itch idle/incrementals, the usual Tetris/tic-tac-toe/Ludo/sudoku clones, two lobste.rs articles that aren't games at all, and a couple of SEO-flavored 'game tool' repos that read like keyword bait rather than anything playable.