Og and its second edition Land of Og are short, humorous role-playing games where the PCs are cavemen in a world full of dinosaurs. When speaking in in-character, players are limited to a 17 word vocabulary (you, me, rock, water, fire, tree, hairy, bang, sleep, smelly, small, cave, food, thing, big, sun, go). The game uses 5 attributes (Strength, Brains, Speed, Hitting, Health) which range from 1 to 18, and a simple leveling system using 5 classes (Strong Caveman, Smart Caveman, Fast Caveman, Hitting Caveman, Healthy Caveman). "Things You Can Do" are skills, and characters also pick "Things You Can't Do", which are generally pretty obvious (Magic Missile, Pick Pockets, Teleport, etc). Combat use a dice pool variant.
Notes on This Edition
The Second Edition of Og: The Role-Playing Game adds one new word, live-action rules, and the full version of Og: The Game of Senseless Prehistoric Combat, the game that started it all. 64 page, full color cover, perfect bound, stand-alone book.
From the back cover:
Players continue to no use big words play Og in Land of Og! It's more fun than you can shake a club at. Revised rules, expanded rules, live action rules and more for Og: The Role Playing Game. All of this in one book that continues the spirit of a prehistoric world of limited words and unlimited fun.