Water covers over 70% of Earth’s surface, so it is likely that many adventures will take the occasional aquatic turn. This could happen in the wilds, on the open ocean, or down in inky subterranean depths. Mid-exploration, an evil game master might even open the water valves in an underground tunnel or inundate some ruins below a destroyed dam. A naive player could believe the worst thing about a water encounter is getting wet, or maybe that something large, toothy, and cold-blooded might try to take a friendly little nibble. But any watery environment is an extremely hostile place: the hazards are many and varied, and death can lurk within the most placid of pools. To enhance adventures on the water or below the surface, this issue introduces a plethora of new rules, ranging from water-damaged equipment, to deep-diving pressure, to the ever-present danger of drowning. Just be warned, your players may never go swimming again!

This publication is dedicated to providing useful information, game content, and ideas to players of modern, science fiction, and post-apocalyptic table-top and role-playing games in general and to fans of Goblinoid Games’ Mutant Future retroclone of classic Gamma World in particular. The rules contained herein are compatible with it and any others that use the “Basic” OGL/d20 RPG system.