for tabletop / pen and paper rpgs
rules-light, microrpgs, pamphlets rpgs, zine rpgs, etc. has to have a system.
if I only need to remember two or three resolution mechanics to determine uncertain/risky events, then it goes here
Technically almost every game in Goon Jam, Eclectic Bastion Jam, What's So Cool About Jam, and 24XX Jam goes in here. So some of them will be here, but just check the jam submissions for the others.