Equipment upgrades

Equipment upgrades (also frequently called kits or mods) are items that can be made at the Tinker's Bench and can be attached to armor, weapons, tools and shields to give them improved stats.

Only one upgrade can be added to each piece of equipment and, unlike poisons or oils, never wear off.

Equipment upgrades can be removed from an item using a  Prying Kit, but at the cost of permanently reducing the item's maximum durability by 50%.

List of upgrades

Note: this list is only an overview, see individual pages for full information on the items. Some important nuances in gameplay functionality are not included here for space concentration.

Modification Kit
Simple Reinforcement Kit	Any								+50
Reinforcement Kit	Any								+100
Advanced Reinforcement Kit	Any								+150
Master Reinforcement Kit	Any							+150%	+100%
Thin Armor Plating	Armor	+4
Armor Plating	Armor	+8
Thick Armor Plating	Armor	+12
Master Armor Plating	Armor	+15
Bulked Plating	Armor	+25						+3.0
Armor Reduction Kit	Armor							-60%
Simple Armor Flexibility Kit	Armor						-5%
Armor Flexibility Kit	Armor						-10%
Advanced Armor Flexibility Kit	Armor						-15%
Gliding Joints	Armor						-40%
Simple Tool Upgrade Kit	Tool					+1
Tool Upgrade Kit	Tool					+2
Advanced Tool Upgrade Kit	Tool					+3
Simple Weapon Damage Kit	Weapon		+2
Weapon Damage Kit	Weapon		+4
Advanced Weapon Damage Kit	Weapon		+6
Fencer Weapon Fitting	Weapon		+10
Master Weapon Fitting	Weapon		+5		+12%
Simple Blunted Weapon Fitting	Weapon			+10
Blunted Weapon Fitting	Weapon			+20
Advanced Blunted Weapon Fitting	Weapon			+30
Paring Blade	Weapon†							-40%
Balanced Weapon Fitting	Weapon						-1
Spiked Weapon Fitting	Weapon				+10%
Oil of Agony	Weapon		+15
Oil of Balance	Weapon						-2
Oil of Bounty	Weapon					+9
Oil of Concussion	Weapon			+100
Oil of Penetration	Weapon				+20%
Modification Kit

† = Also applies to shields

Biles

Biles dropped by MiGo function like weapon upgrades, but give stat buffs to the player while the weapon is held instead of bonuses to the weapon itself. Buffs from biles cannot stack with buffs gained from food.

All biles reduce weapon durability by 25%.

Bile	Bonus
Bile of Strength	Strength Weapon Damage +15%
Bile of Agility	Agility Weapon Damage +15%
Bile of Vitality	Health +60
Bile of Accuracy	Agility Weapon Damage +15%
Bile of Grit	Stamina +21
Bile of Encumbrance	Carry Weight +45
Bile of Survival	Health +60