Og: The Role-Playing Game
A humorous beer-and-pretzels mini-RPG about cavemen vs dinosaurs. Players choose 1 of 5 types of cavemen: strong caveman¸ smart caveman¸ fast caveman¸ hitting caveman¸ or healthy caveman. The twist is that players are limited to a 17 word vocabulary at all times: you¸ me¸ rock¸ water¸ fire¸ tree¸ hair¸ bang¸ sleep¸ smelly¸ small¸ cave¸ food¸ thing¸ big¸ sun¸ and go. - A description from https://darkshire.net/jhkim/rpg/encyclopedia/ with kind permission of John H. Kim