1. Robin's Laws vs Play Dirty Death Match! ID: 2009-SEM0906072 Year: 2009 Title: Robin's Laws vs Play Dirty Death Match! Description: Robin Laws (Robin's Laws of Good Game Mastering) and John Wick (Play Dirty) square off in a no holds barred GM vs GM deathmatch! Actually, the two authors team up to give you the best advice on GM tactics, tricks and strategies.