In the Dungeons & Dragons fantasy role-playing game, the thought eater is a type of fictional monster for player characters to encounter.
The thought eater first appeared in the Eldritch Wizardry supplement (1976).[1]
The thought eater appeared in first edition Advanced Dungeons & Dragons in the original Monster Manual (1977).[2]
The thought eater appeared in second edition in The Complete Psionics Handbook (1991),[3] and reprinted in the Monstrous Manual (1993).[4] The thought eater appeared for the Planescape setting in the Guide to the Ethereal Plane (1998).[5]
The thought eater appeared in third edition in the Psionics Handbook, and its 3.5 revision the Expanded Psionics Handbook (2004).[6]
The thought eater is an unintelligent ether dweller attracted by psionic-related energy use.