Derpability

Every repair leaves a mark. Derpability adds a permanent equipment endurance system to Valheim — the more you repair your gear, the more worn down it becomes, until eventually it's too damaged to fix at all.

What is the the opposite of QOL? :D I created this because i wanted systems that would be resource sinks on my economy focused server. Maybe it can help you do the same?

How It Works

Each time you repair an item at a workbench, its maximum durability is permanently reduced based on how damaged it was when you repaired it. Running your sword into the ground before repairing it costs more than topping it up while it's still mostly intact.

Once an item's max durability falls to 30% of its original value, it can no longer be repaired — but it keeps working until the durability bar hits zero. Use it until it breaks.

Upgrading a worn item preserves its wear ratio. A sword worn down to 70% stays at 70% wear after the upgrade, just with a higher max ceiling.

Visual Indicators

Derpability adds color-coded durability bars to both the inventory and hotbar. The bar is always visible on any item that has durability, even when fully repaired.

Bar colors by wear stage(default):

• Green — healthy, above 80% of original max
• Yellow — worn, 60-80% of original max
• Orange — heavily worn, 30-60% of original max
• Red — unrepairable, at or below 30% of original max

Tooltips also show a wear warning at each stage, with a clear message when the item can no longer be repaired. Wear category % will shift based on BrokenThresholdPercent config.

Configuration

Settings are found in BepInEx/config/wagnarok.valheim.derpability.cfg after first launch.

MaxDurabilityLossPerRepair (default: 0.10) The maximum fraction of an item's original max durability lost per repair. This is the cost when repairing from zero durability — repairing at higher durability scales the loss down proportionally. At the default of 10%, a sword repaired from near-zero loses 10% of its original max each time.

BrokenThresholdPercent (default: 0.30) The fraction of original max durability at which an item becomes unrepairable. At the default of 30%, an item that has been worn down to 30% of its original max can no longer be repaired but remains fully functional until it breaks.

Example

A bronze sword starts with 200 max durability. Each time it is repaired from near-zero, it loses about 20 points of max durability.

• After 1 repair: 180 max
• After 3 repairs: 140 max — yellow bar
• After 5 repairs: 100 max — orange bar
• After 7 repairs: 60 max — red bar, no longer repairable

From that point, use it until it breaks. Then craft a new one.