Durability Tweak
by Itsuka_Hiro
Durability Tweak changes how the Unbreaking and Mending enchantments, the anvil repair cost and the Prior Use Penalty behave on Forge 1.20.6 servers.
What it does
The mod reworks several durability systems at once. It raises the maximum level of Unbreaking, changes how Unbreaking affects both tools and armor, and lowers the efficiency of Mending in exchange for a different durability to experience ratio. Mending can also be limited so that a tool with reduced maximum durability can still be repaired. Some repairs are made random, so Mending does not always succeed.
Anvil costs are changed as well. The Prior Use Penalty is altered, the Too Expensive cap is removed, and the 40-level limit no longer applies. The author describes the mod as an attempt at a simpler, linear cost scale in place of the recursive method vanilla uses. Unbreaking's enchanting cost is also lowered.
Durability Tweak is server-side only, so players join without installing it. It is published for Forge only, across six game versions 1.20.1 – 1.20.6, with 1.0 for 1.20.6 as the latest file. The code is open source under the MIT License, and the source and issue tracker are public.
Key features
Higher Unbreaking cap
Unbreaking's maximum level is raised above vanilla, and its enchanting cost is reduced to match.
Reworked Unbreaking effect
Unbreaking changes how durability loss is applied to tools and to armor separately.
Random Mending repairs
Mending repairs can fail at random, and its efficiency drops as Unbreaking rises.
Anvil cost changes
The Prior Use Penalty is changed, the Too Expensive limit is removed, and the 40-level cap no longer applies.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners and players who want to change durability rules, repair costs or anvil limits on a Forge server running Minecraft 1.20.1 – 1.20.6.
How it compares
Orb of Unbreaking is a Forge mod for 1.20.1 with the client and server environment, and it is not open source under the MIT License. Unbreakable Limitless Anvils is open source under the MIT License, but it targets 1.20.4 – 1.21 and needs both sides installed. More Anvils is for 1.20.1 with both sides required, and its license is All rights reserved, so it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Durability Tweak | Forge | 1.20.1 – 1.20.6 | Server-side only | 2025-03-12 |
| Orb of Unbreaking | Forge | 1.20.1 | Client and server | 2025-11-01 |
| Unbreakable Limitless Anvils | Forge | 1.20.4 – 1.21 | Client and server | 2024-08-01 |
| More Anvils | Forge | 1.20.1 | Client and server | 2026-06-12 |
Questions
Does Durability Tweak need to be installed on the client?
Which Minecraft versions does Durability Tweak support?
Is the source code of Durability Tweak available?
In the catalog
Durability Tweak is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 11,154 mods support Minecraft 1.20.6.
More from Itsuka_Hiro
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What the author says
Have you ever thought that Mending is way too overpowered?\ You thought that remove it is the only solution?\ But even that, you still LOVE Mending? The concept is quite simple (idk if 'simple' is the right word): - Change how Prior Use Penalty work. - Remove 'Too Expensive' in Anvil. - Increase max level of…
Official listing
- Modrinth page
- modrinth.com/mod/durability-tweak
- Owner
- Itsuka_Hiro
- Published
- 2025-03-12
- Updated on Modrinth
- 2025-03-12
- Facts verified
- 2026-10-15