Isle of the Ape is an adventure module for the Dungeons & Dragons role-playing game World of Greyhawk campaign setting, in which the events occur in a magical demiplane of the same name created by the mad archmage Zagyg Yragerne TSR 9153

Run, play or splice up 66 pages of mayhem and weirdness in this Slavic mythic-inspired (with an acid fantasy-twist) mini-sandbox for Labyrinth Lord or the well-aged fantasy rpg of your druthers. Contains: • A 25-site pointcrawl of the otherwordly Slumbering Ursine Dunes region. Beyond the big ticket adventure sites you will find along the way a Polevik-haunted rye field, a Zardoz head-living hermit, bearling pilgrimage site, antediluvian beaver engineers and other assorted madness. • Two separate “dungeons”, the bio-mechanical, lost-in-time Golden Barge and the faction-contested Glittering Tower, with enough detail and portability to be slotted into an existing campaign. • The Chaos Index, a dynamic events system for modeling the mythic weirdness of the Dunes. Actions of the players in the sandbox will escalate or de-escalate the levels of events. • Four competing factions operating inside the Dunes, plus guidelines for their mutual interactions.