For many tabletop RPG players, the joy of an in-depth game is that anything can happen. As every GM knows, no matter how many story hooks, maps or characters you painstakingly create in advance, your best-laid plans are often foiled by the outcome of an unexpected dice role or your players' refusal to stay on task. What are GMs supposed to do when their players choose those for which they're not prepared? The Game Master's Book of Random Encounters provides an unbeatable solution. This massive tome provides nearly 100 maps and 150 tables for all types of encounters, from temples and taverns to ships, wizard's lairs and much more! Each entry includes original handdrawn maps and multiple tables designed to help GMs fill in the sights, sounds and possible encounters in each location. This allows GMs to start new adventures or enhance existing ones on the fly.