Pufferfish's Skills
Adds a fully configurable skill system to the game.
Screenshots
About this Mod
Pufferfish's Skills
About
Pufferfish’s Skills is a mod that adds a framework to create fully configurable skill systems. It has a dedicated online editor to make designing skills layouts easier. There is also an API which allows extending the functionality and managing skills.
Getting started
For Players
This mod is just a framework. You need to install skill trees separately. The easiest way to start playing is to install Default Skill Trees mod and Pufferfish's Attributes mod.
For Creators
The recommended way to begin creating is to follow the Creating Skill Trees Tutorial. Alternatively you can start by analyzing and modifying existing skill trees like Default Skill Trees data pack.
Commands
/puffish_skills points add <player> <category> <count> - Adds points.
/puffish_skills points set <player> <category> <count> - Sets points.
/puffish_skills experience add <player> <category> <amount> - Adds experience.
/puffish_skills experience set <player> <category> <amount> - Sets experience.
/puffish_skills skills unlock <player> <category> <skill> - Unlocks skill.
/puffish_skills skills reset <player> <category> - Locks all skills, points are refunded.
/puffish_skills category lock <player> <category> - Locks category.
/puffish_skills category unlock <player> <category> - Unlocks category.
/puffish_skills category erase <player> <category> - Resets points, experience, skills.
Default keybindings
k - Opens skills screen.
Configuration
Configuration is JSON driven. It is possible to reload in without restarting game using /reload command.
To easily edit skills you can use online editor.
You can read more about configuration in the documentation.
Compatibility
This mod supports both Forge and Fabric. What's more it is cross-compatible, so the client can use different loader than the server.
This mod should not conflict with other mods. Please report an issue if you find an incompatibility.
Versions
Versions that are maintained and will receive future updates: 1.18.2, 1.19.2, 1.19.4, 1.20, 1.20.1, 1.20.2, 1.20.4, 1.21.1, 1.21.3, 1.21.4, 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9, 1.21.10, 1.21.11, 26.1, 26.2.
Modpacks
You can use this mod in your modpack as long as you do not redistribute this mod.
Community-made tutorials
Videos
Available Versions
How to Install Pufferfish's Skills on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.2).
Install Mod
Open the mod browser in the dashboard and search for "Pufferfish's Skills". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.2, 26.1, 1.21.11 (+18 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Pufferfish's Skills server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.2). You can switch loaders with one click in the panel.
Is Pufferfish's Skills compatible with fabric and forge and neoforge?
Pufferfish's Skills officially supports fabric, forge, neoforge for Minecraft 26.2, 26.1, 1.21.11. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Pufferfish's Skills – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Pufferfish's Skills consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Pufferfish's Skills with just one click on your server.