Armor Curve

Armor Curve adjusts the formulas that scale armor degradation and damage reduction for both mobs and players. Its default setting lowers the protection that armor gives, so extra pieces add less total protection; the author states that leather gives roughly 40% protection, iron 60% and diamond 66%, and that protection enchantments are nerfed as well, leaving a full diamond set at about 89% where vanilla reaches 96%. Armor toughness is removed as a direct mechanic and is instead used as a variable in an extra damage-reduction layer, which greatly decreases damage above 40 points.

Armor also degrades, and low durability reduces the attributes of the specific piece, so a half-broken helmet or chestplate gives less protection. The mod is configured through a formula input that is parsed with EvalEx. Available variables include armor, armor toughness, damage, enchantment level, degradation remaining and the maximum durability. Setting degradation to a formula that replicates the vanilla curve restores vanilla behavior, and a multiplier on damage can make every hit harder and wear armor faster.

Armor Curve runs on client and server, so the server and every player need the mod. It is published for Forge only, across six release versions covering 1.16.4 – 1.20.1. The code is open source under the GNU General Public License v3.0 or later, and the source code is public.