Extra Skill Slots and Mutations
⚪ Last updated 2017⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 2.9% endorsement rate — high engagement, a strong quality signal
- 🏆 #3 of 46 Skills and Leveling mods in this game by downloads
📋 About This Mod
Extra Skill Slots and Mutations.
6 new sockets for the base game and blood and wine panel. 4 new sockets for the blood and wine mutations panel. 4 new mutations. Controller Compatible. Different Versions Extra Sockets This version does not add new mutations and only adds new skill sockets.
Extra Sockets and Mutations. This version adds both Mutations and Skill Sockets.
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Mutation Specifics These are what all of the new mutations are:
- []Mutated Metabolism
- []Inferno
- []Razor Blade
- []Raging Wolf
The mod has a config file for those who want to tweak a few settings: modSlots\content\scripts\local\ESSConfig.ws This was mainly done so that you won't need to worry about merging with other smaller mods.
[]Standard Levelling - You can either unlock all ability slots from the beginning, or use the vanilla system of unlocking slots as you level up. []NGP Leveling - Same as standard, but applies only to NGP, you can choose to have all ability slots unlocked, (vanilla) or lock them until the required level is reached. Those levels will be based on your NGP starting level. [*]Disable BaW Socket Colors - The bonus slots granted by BaW c
This mod increases the socket count from 12 and 16 to 18 and 26, and adds 4 new mutations. It's for players who want more build flexibility and variety in their skill loadouts. With over 11,000 endorsements, it's a popular choice for enhancing character progression.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust with 11,364 endorsements and nearly 400k downloads.
- Straightforward quality-of-life improvement for build diversity.
- Adds new mutations to shake up your character builds.
⚠️ Cons
- Last updated in 2017 — may be outdated for current game versions.
- No detailed documentation on which mutations are added or how they work.
- Only affects socket counts and mutations; no other gameplay changes.
For players who feel limited by the default socket counts and want more room to customize their skills. Also for those looking to experiment with new mutations. Skip if you're happy with the base game's progression or want more comprehensive overhauls.
💡 Beginner Tips
- Check if the mod requires a fresh save or works with existing characters.
- Since it's from 2017, verify compatibility with your current game version before installing.
- If you use other mods that alter sockets or mutations, load order might matter.
📊 Mod Details
- Game
- Witcher 3 Mods
- Author
- Lim3zer0
- Version
- 4.3HotFix
- Downloads
- 397,552
- Endorsements
- 11,364
- Category
- Skills and Leveling
- Created
- 8/18/2017
- Updated
- 10/18/2017
🔧 How to Install Witcher 3 Mods
Download from Nexus.
📖 Full step-by-step install guide for Witcher 3 →
Visit the official mod page for specific installation instructions for this mod.
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