So, there is the following rule that makes me assume physical game design (board games, card games, TTRPGs, etc) isn't allowed...
"Control Guidelines: All games must be playable on at least Windows 10/11 and with mouse and keyboard."
... But would designing a physical game that is playable via a program ok? For example, a board game on Table Top Simulator, or a TTRPG that can be played over Discord.