GitHub and itch.io have announced their annual Game Off jam which will be happening over the whole month of November 2020. There’s information and a signup page at https://itch.io/jam/game-off-2020. The mystery theme will be announced at the start of the jam. Previous years themes include “leaps and bounds”, “hybrid”, and “throwback”.
I’m going to try to do my next Arduboy game as a jam entry, with it hosted on itch.io using the web emulator for people to try. Has anyone else tried entering Arduboy games in jams like these? It would be nice to see more representation.