What's the name of the funny roguelike top-down dungeon crawler where you eat fungus?

[screeg]

You play on a grid against hordes and hordes of enemies, it's zany, and you eat 12 different kinds of fungus for healing and buffs..? Has permadeath, over ten years old…
Plastic and pleather armor, traffic cone helmet…
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Dungeons of Dredmor! Got it.

 

[Carnifex]

Hah, I have that game, says I last played it in December of 2011. Usually I can remember games quite vividly, yet this one I'm drawing a complete blank on.