In many campaign settings for the Dungeons & Dragons role-playing game, Diirinka is the derro deity of magic, savants, knowledge, and cruelty. His magical power was stolen from Ilsensine, and he passes this power on to his followers.

• McComb, Colin. On Hallowed Ground (TSR, 1996).
• Redman, Rich and James Wyatt. Defenders of the Faith (Wizards of the Coast, 2000).
• Sargent, Carl. Monster Mythology (TSR, 1992).