Vengeance of Alphaks is an adventure module for the Dungeons & Dragons fantasy role-playing game, set in that game's Mystara campaign setting. TSR, Inc. published the module in 1986 for the D&D Master Set rules. It is part of the "M" series of modules. The module was designed by Skip Williams. Its cover art is by Jeff Easley, with interior art by Mark Nelson and cartography by David C. Sutherland III.

Vengeance of Alphaks is an adventure in which an Immortal returns from the plane of entropy to once again terrorize the world.^[1]

The immortal Alphaks seeks revenge against the human race by provoking conflict and fomenting war. Strange dreams warn the player characters of impending battles and treachery. During a battle against dragons and giants, a visiting cleric provides information on the source of the trouble, and the party explores Coiger's Lair. In a lower level, they must solve logic puzzles to deactivate magic pillars creating earthquake beetles. In a final battle, powerful armies contest for the city of Alpha and control of Norwold.

M2 Vengeance of Alphaks was written by Skip Williams, with a cover by Jeff Easley and interior illustrations by Mark Nelson, and was published by TSR in 1986 as a 32-page booklet with an outer folder.^[1] This is a sequel to M1 Into the Maelstrom.^[1]

• List of Dungeons & Dragons modules