I’ve taken part in more than 15 game jams as a game designer and programmer.
Best result: Goops. Ludum Dare 56: 40th overall, top 20 in the fun, mood, graphics, and theme categories. A puzzle game about moving colorful little people into houses of matching colors. I think our biggest success was getting the scope right: we finished the jam calmly, with no feature creep, and the game ends exactly where it should. That left time for polish and level design, and it paid off.