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thac0

To Hit Armor Class Zero.
Originated from Dungeons and Dragons, where the lower the armor class, the better. An overly complicated system that almost everyone will admit sucks, especially when compared to D&D v3.x rules to hit.

Brandeth the 1st level Fighter has a THAC0 of 12.

by ShadowSiege April 15, 2004

39👍 7👎