Heyo, glad to be here!
This jam is really inspirational for me. I'm making a rules-lite but fully compatible version of my game (The ODD RPG, currently in Alpha Playtest), which is going to be... challenging, but absolutely amazing. Because from 150ish pages of core rules (and another 150 under development for extra stuff like Magic, Psionics etc), I want to make a 7-page game. (Well, technically, 13 pages, but the rules will only be 7).
If anyone wants help with their playtests, or would like to help with mine, send me a message!