Psionics use a different system from traditional D&D spellcasting, using a point pool to track a character's power usage.

The prestige classes are the Cerebremancer, Elocater, Fist of Zuoken, Illithid Slayer, Metamind, Psion Uncarnate, Pyrokineticist, Thrallherd and the War Mind.

Cover art was by Henry Higginbotham, with interior art by Steven Belledin, Brian Despain, Wayne England, Lars Grant-West, Heather Hudson, Jeremy Jarvis, Chuck Lukacs, David Martin, Monte Moore, Jim Pavelec, Wayne Reynolds, Arnie Swekel and Sam Wood.

[1] The reviewer from Pyramid found the book's prestige classes "more imaginative, with beings who leave their physical form behind for a life of mental existence, hunters who kill illithids, and the irresistibly heroic Fist of Zuoken".

Reviewer Jesse Heinig said, "As an expansion for all manner of psionic-themed characters, the Complete Psionic book provides more depth and more unusual powers.