Maxwell's etheric cage

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Obsolete: This article refers to an aspect of the game which has been removed. It is retained for historical reference only.
A fine mesh cage designed to capture magical energy. Experimental notes suggest research was abandoned when the cage began to capture magical contamination almost as effectively. Perhaps you could wear it on your head?

Maxwell's etheric cage.png the +0 Maxwell's etheric cage

+0 cage (functionally a helmet)

There is a 50% chance that you will recover 1 extra MP every turn. This shows up as an extra 0.5 MP/turn on the character sheet, but you may notice some variance in the actual regeneration.
Increases maximum MP by 4
Doubles all magical contamination while worn
Causes heavy magical contamination when removed


Sources of electricity resistance are rare, and the increased MP regeneration is always useful for casters, especially ones that haven't found a source of channeling. Otherwise, most characters will find an amulet of magic regeneration providing extra MP without the increase to your magical contamination and while allowing you to wear headgear that provides intelligence, magic resistance, or see invisible.

This hat synergizes reasonably well with guardian spirit, so Vine Stalkers and Demonspawn with the Mana Shield mutation may find this hat beneficial to survivability.


  • Maxwell's etheric cage was removed in version 0.25
  • Prior to version 0.18, Maxwell's Etheric Cage did not double contamination.
  • Maxwell's etheric cage was introduced in version 0.17.