The defense mechanism has been modified around build 1640 and the following information isn't up to date for the most recent version of the game.
Whenever an attack occur, the attacker's ToHit is compared to the defender's dodge and the defender's defense. Once a blow does hit, ToHit, dodge and defense don't impact the amount of damage dealt or received. Characters and monsters have symmetrical mechanics so this page covers both blows dealt and received.
This mean that:
- At 0 , one Tohit/Defense have a 1:10 value
- At 10 , one Tohit/Defense have a 1:2 value
- At 50 , one Tohit/Defense have a 50 a 1:1,2 value.
- after 100, one Tohit/Defense point have nearly a 1:1 value: each point offer as much hit/parry change than the opposite.