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    2,055,424 files checkedFiles from Modrinth and CurseForge we downloaded and checked. Counted on 25 Oct 2026.636,163 files with their code readFiles whose code we turned back into readable code and read, in an isolated environment. Counted on 25 Oct 2026.269,392 projects gradedProjects with a letter from A to F. Counted on 25 Oct 2026.
    How it worksMalware we foundAPIAboutPrivacyTermsContact

    © 2026 ModgradeNot an official Minecraft product. Not approved by or associated with Mojang or Microsoft.

    Pufferfish's Skills

    Mod

    Build skill trees that let players unlock new abilities as they play.

    A95/ 100
    • OverviewA
    • SecurityPassed
    • PrivacyNone found
    • AINone found
    • CompatibilityUp to 26.3
    • ModpacksIn 5,521
    • ReleasesLatest 8 Oct

    Download

    puffish_skills-0.19.2-26.3-fabric.jar Beta

    Released 8 Oct 2026 · 627.8 KB

    Passed: our checks found nothing harmful in this file.

    Download

    Required to run

    • Fabric APIAMinecraft 26.3 · Fabric (release 0.165.0)
    OverviewSecurityPrivacyAICompatibilityModpacksReleases

    Why grade A

    How grades work

    Strengths

    • Security checks passed
    • Regular releases for the newest Minecraft versions
    • Public source code and issue tracker
    • Widely used
    • Around for years

    Points lost

    • Some modpacks removed it−3 points
    All 11 criteria

    • Maintenance

      Full points27 / 27
      Last releaseHow long ago the newest file came out, or an existing file was marked as working on a new Minecraft version.2 weeks ago (8 Oct 2026) 12 / 12
      Supports popular versionsWhether the project has a file for a Minecraft version that 15% or more of the popular mods updated in the last 6 months also support. A version many modpacks use, like 1.20.1 or 1.21.1, also counts after a release in the last 12 months.26.3 (latest) on Fabric and NeoForge, 1.20.2 on Forge 9 / 9
      Regular releasesIn how many of the last 24 months a new file came out. Full points at 8 months.Releases in 21 of the last 24 months 6 / 6

    • Stability

      3 points lost19 / 22
      Removed from modpacksHow many modpacks removed it in a later version of the pack. We can only see this in modpacks with two or more versions. A pack that swaps it for another edition of the same project, or that is rebuilt from scratch, does not count.73 of the 372 modpacks with two or more versions removed it in a later one (20%) See the 73 modpacks7 / 10
      Quick fixesHow often a release needed a quick fix: a new release within 3 days to fix a problem in it.2 of its 41 releases in 2 years needed a quick fix (5%) 7 / 7
      Known conflictsHow many projects say they do not work with it, compared with how widely it is used. Packs, small projects, forks, ports, add-ons, alternatives and old versions do not count.None that counts in the grade 5 / 5

    • Transparency

      Full points10 / 10
      Source codeWhether the project page links to its source code, so anyone can read what it does.GitHub · pufmat/skillsmod 7 / 7
      Place to report problemsWhether the project page links to a place where players can report problems: an issue tracker.GitHub issues · pufmat/skillsmod 3 / 3

    • Popularity

      Full points4 / 4
      DownloadsDownloads on Modrinth and CurseForge. Full points from 5 million.40,775,121 4 / 4

    • Track record

      Full points8 / 8
      AgeHow long the project has existed. It counts less when no new file came out recently.3.6 years, 864 releases 8 / 8

    • Security

      Passed
      File checksThis check adds no points. It can only take points away.Our checks found nothing harmful in all 23 latest files for recent Minecraft versions. See Security
    Total95 / 100

    67.8 of the 71 points that apply = 95 out of 100. The points above are rounded to whole numbers.

    Images

    • Skills screen in game
    • Combat Skill Tree
    • Editor
    • Mining Skill Tree

    About

    Pufferfish’s Skills is a configurable framework for creating skill systems in Minecraft, rather than a complete set of ready-made skill trees. Players can browse and unlock skills in an in-game skills screen, while creators define the trees and their configuration separately; a dedicated online editor makes designing skill layouts easier. Skill-tree creators can award experience and points, organize skills into categories, and define unlockable skills, with commands for managing points, experience, skills, and category access. The framework also provides an API for extending and managing skills, and configured rewards can connect skill unlocks to other systems, including scoreboard values or Origins powers. To play with skill trees, players need to install them separately; the official page recommends Default Skill Trees together with Pufferfish’s Attributes as a starting setup.

    Written from Modrinth and CurseForge . How we write it

    In-game changes

    Changes the game's code in 9 areas, as a library other mods build on: Game data and resourcesChanges 4 game code files in this area: recipes, tags, advancements, language files and other game data., Mobs and their behaviorChanges 3 game code files in this area: mobs, animals, villagers, projectiles and how they move and act., PlayerChanges 3 game code files in this area: your character: movement, abilities, hunger and controls., Rendering and graphicsChanges 3 game code files in this area: drawing mobs, items, particles and textures on screen., Inventory and itemsChanges 2 game code files in this area: items, chests and other containers, crafting and enchanting., Chunk loading and storageChanges 1 game code file in this area: how the game loads, tracks, saves and unloads chunks., Game coreChanges 1 game code file in this area: the main loop, lighting and other code the whole game uses., User interfaceChanges 1 game code file in this area: menus, screens, tooltips, the chat window and the in-game overlay. and Blocks and fluidsChanges 1 game code file in this area: how blocks, fluids and redstone work..

    Adds 1 key binding: Open Skill Tree.

    Counted from the names and data files in the mod, so the list may not be complete.

    Keeps all of vanilla Minecraft's textures, models and sounds.

    Often used with it

    See all 30
    AttributeFixAL_Ender's CataclysmBAmendmentsATowns and TowersBIron's Spells 'n SpellbooksA

    Details

    Creator
    Pufferfish
    License
    Custom license
    Downloads
    40.8M
    Created
    9 Mar 2023
    Official pages
    Modrinth , CurseForge
    Links
    Source code , Issues , Wiki , Discord

    Security

    No harmful code found

    We checked its files and read their code, without running it.

    What it can do on your computer

    Creates settings files
    The mod keeps its settings in the config folder of your game, where you can change or delete them. 1 file in your config folder.

    Why we show this: a mod runs on your computer like any program, so harmful code in it can take your accounts or files. Our checks look for known signs of harm. They cannot prove that a file is harmless. In the grade: malware means no grade, and a Warning in a latest file for a recent Minecraft version lowers it.

    How we checked · All 39 latest files checked, last on 16 Oct 2026
    • FilesWe download the files from Modrinth or CurseForge and look at what is inside them and what their code can do, without running them. Fixed rules tell what is harmful.
      39 latest files: the newest file for each Minecraft version and loader. The answer above is about the 23 for recent versions. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks. See each file in Releases
    • Their codeWe turn the code of the files back into readable code and follow what it does, without running it. This shows what it downloads, what it sends and where your login goes.
      Read without running it
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares that the project reads or edits things on your system outside the game. Since 13 Aug 2026, Modrinth's rules require it when this applies.
      Nothing declared about your system outside the game.
    • Looked for, not foundWe looked for these in the file and did not find them.
      The internet, folders outside the game, other programs, updating itself, the webcam or microphone, an AI service.

    Privacy

    We found nothing it sends

    We read its code without running it: it contacts no web address while you play.

    Why we show this: a mod can send things about you over the internet, like your player name or your login. Contacting an address to check for updates or download files sends nothing about you. Not in the grade: sending data can be normal for what a mod does.

    How we checked · All 23 files read
    • Files readWe read the code without running it. We list each web address the code contacts while you play, and what it sends. Code that is never used is left out.
      The code of all 23 files, for recent Minecraft versions. See each file in Releases
    • Author on ModrinthThe disclosure form on Modrinth, where the author declares crash reports, usage data and advertisements. Since 13 Aug 2026, Modrinth's rules require it when a project collects data on its users or shows advertisements.
      Nothing declared about crash reports, usage data or advertisements.

    AI

    No sign that AI was used to make it

    We looked for AI tools in its texts, files, images and code history and found none.

    No sign of AI in the game

    We found no AI service, AI library or AI model file in its code.

    Why we show this: some players and servers avoid projects made with AI, and AI in the game can send what you write to an online service. Not in the grade: using AI does not tell whether a project works well or is kept up to date.

    How we checked · 6 places read
    • Author on ModrinthThe disclosure form on Modrinth. Since 13 Aug 2026, Modrinth's rules require it when a substantial part of the code is AI output, when an asset is mainly AI output, or when the project or its page relies on generative AI.
      No AI content or AI features declared.
    • Code historyThe public code on GitHub: who made each change, credit lines such as "Co-authored-by", and its files.
      Nothing found
    • Description and changelogsThe description, project page and newest changelogs: sentences saying an AI tool was used, and text pasted from an AI chat.
      Nothing found
      40 changelogs read
    • Its filesFiles that AI coding tools leave behind (like AGENTS.md), and the texts inside the files you download.
      Nothing found
    • Images in its filesHidden data in the images of the files you download, where AI image tools write their name and settings.
      Nothing found
    • Code of the modThe code and files of the mod, read without running it: addresses of AI services, AI libraries, AI model files and a place for your own AI key.
      No AI service, AI library or AI model file
      334 code files read

    Compatibility

    See all 864 files
    Fabric
    NeoForge
    Forge
    1.161.191.2126.1

    Point at or tap a version to see its loaders.

    Runs onWhere to install it: in your game, on the server, or both. As the author says on Modrinth.Needed in your game and on the server, or you cannot join.
    RequiresProjects you must also install for it to work. From the author's lists for its files for recent Minecraft versions, or from its project page.
    Fabric APIon FabricA
    OptionalProjects it can work with but does not need. The author lists them.Nothing
    IncludesProjects packed inside its files.Nothing
    Speed of updatesHow fast it gets a file for new Minecraft versions, on average, compared with similar projects. Not part of the grade.Faster than most mods. On average, it gets a file 11 days after a new Minecraft version comes out. Measured on the last 6 Minecraft versions.

    Related projects

    Projects that need Pufferfish's Skills to work.

    ProjectTypeDownloadsGrade
    Simply SkillsCMod10M downloadsPufferfish's Unofficial AdditionsBMod4.4M downloadsDefault Skill TreesCMod4.4M downloadsIron's Spells 'n Spellbooks Dynamic Skill TreesCMod2.4M downloadsSkill Tree (RPG Series)AMod2M downloadsStronger Skill TreeAMod1.4M downloadsSkillExpNotifierAMod1M downloadsPufferfish's Skills x OriginsAMod525K downloadsStronger Skill Tree (Unlock All)BMod347K downloadsAdventurer Skills [Pufferfish's Skills]CMod334K downloads
    1 to 10 of 52123456

    Modpacks using this project

    Find modpacks with it
    Modpacks that released a new version with this project, each month
    5002500
    Oct 2024: 161 modpacksNov 2024: 144 modpacksDec 2024: 154 modpacksJan 2025: 195 modpacksFeb 2025: 167 modpacksMar 2025: 168 modpacksApr 2025: 213 modpacksMay 2025: 229 modpacksJun 2025: 253 modpacksJul 2025: 276 modpacksAug 2025: 291 modpacksSep 2025: 262 modpacksOct 2025: 305 modpacksNov 2025: 360 modpacksDec 2025: 385 modpacksJan 2026: 406 modpacksFeb 2026: 362 modpacksMar 2026: 343 modpacksApr 2026: 332 modpacksMay 2026: 394 modpacksJun 2026: 396 modpacksJul 2026: 415 modpacksAug 2026: 410 modpacksSep 2026: 428 modpacks
    Oct 2024Oct 2025Sep 2026
    Modpacks that released a new version with this project, each month
    Oct 2024161
    Nov 2024144
    Dec 2024154
    Jan 2025195
    Feb 2025167
    Mar 2025168
    Apr 2025213
    May 2025229
    Jun 2025253
    Jul 2025276
    Aug 2025291
    Sep 2025262
    Oct 2025305
    Nov 2025360
    Dec 2025385
    Jan 2026406
    Feb 2026362
    Mar 2026343
    Apr 2026332
    May 2026394
    Jun 2026396
    Jul 2026415
    Aug 2026410
    Sep 2026428

    More modpacks put it in their new versions than a year ago: 396 a month now, 254 a year agoThe average of the last 6 months, compared with the same 6 months a year before. We say it only when the change is large..

    5,521 modpacks include Pufferfish's Skills in at least one of their versions. Here are the 30 most downloaded.

    ModpackDownloadsLast version with it
    Prominence™ II: Hasturian Era15.4M downloadslast version with it 23 Oct 2026DeceasedCraft - Urban Zombie Apocalypse9.8M downloadslast version with it 17 Jul 2026DarkRPG - RPG with Magic, Origins, Quests, Adventure3.9M downloadslast version with it 24 Oct 2026Craftoria2.9M downloadslast version with it 13 Sep 2026Better Adventures+2.2M downloadslast version with it 23 Jul 2025Dungeon Heroes (RPG Series)1.9M downloadslast version with it 3 Oct 2026MC Eternal 21.9M downloadslast version with it 16 Sep 2026Fantasy MC Fabric1.9M downloadslast version with it 20 Jul 2026Society: Sunlit Valley1.6M downloadslast version with it 7 Oct 2026Prominence™ Classic1.1M downloadslast version with it 29 Jan 2024
    1 to 10 of 30123

    Often in the same modpacks

    Mods that modpacks often add together with Pufferfish's Skills. Share: how many of the modpacks with Pufferfish's Skills also have that mod.

    ProjectTypeShareGrade
    AttributeFixAModin 50% of the modpacks with Pufferfish's SkillsL_Ender's CataclysmBModin 45% of the modpacks with Pufferfish's SkillsAmendmentsAModin 43% of the modpacks with Pufferfish's SkillsTowns and TowersBModin 42% of the modpacks with Pufferfish's SkillsIron's Spells 'n SpellbooksAModin 42% of the modpacks with Pufferfish's SkillsSimply SwordsAModin 38% of the modpacks with Pufferfish's SkillsMmmMmmMmmMmmAModin 38% of the modpacks with Pufferfish's SkillssparkAModin 38% of the modpacks with Pufferfish's SkillsChat HeadsAModin 37% of the modpacks with Pufferfish's SkillsRelicsAModin 37% of the modpacks with Pufferfish's Skills
    1 to 10 of 30123

    Latest files

    The newest file for each Minecraft version and loader. The files for recent versions come first. Recent versions: those released in the last 2 years, plus 1.20.1 and 1.21.1, among the most played in modpacks.

    MinecraftLoaderVersionSecuritySendsRequires
    26.3·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.3-fabric.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.3·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.3-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.2-fabric.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.2·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.2-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.1-fabric.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    26.1 to 26.1.2·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.1-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.21.11-fabric.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.11·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-1.21.11-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·Fabric0.18.30.18.3 · puffish_skills-0.18.3-1.21.9-fabric.jarSends: None foundRequires:Fabric APIPassedOur checks found nothing harmful in this file. Its code was read too.
    1.21.9 to 1.21.10·NeoForge0.18.30.18.3 · puffish_skills-0.18.3-1.21.9-neoforge.jarSends: None foundRequires:NothingPassedOur checks found nothing harmful in this file. Its code was read too.
    1 to 10 of 391234

    864 releases

    MinecraftLoaderVersionReleasedSecurityGet it onDownload
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.1-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 625.1 KB
    26.1 to 26.1.226.1 to 26.1.2The latest file for its Minecraft version and loader·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.1-neoforge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 625.0 KB
    1.18.2The latest file for its Minecraft version and loader·Forge0.19.20.19.2 · puffish_skills-0.19.2-1.18.2-forge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 629.3 KB
    1.18.2The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.18.2-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 620.1 KB
    26.3The latest file for its Minecraft version and loader·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.3-neoforge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 627.7 KB
    26.3The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.3-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 627.8 KB
    1.20 to 1.20.11.20 to 1.20.1The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.20-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 622.0 KB
    1.20 to 1.20.11.20 to 1.20.1The latest file for its Minecraft version and loader·Forge0.19.20.19.2 · puffish_skills-0.19.2-1.20-forge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 631.4 KB
    26.2The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-26.2-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 625.1 KB
    26.2The latest file for its Minecraft version and loader·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-26.2-neoforge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 625.0 KB
    1.19.2The latest file for its Minecraft version and loader·Forge0.19.20.19.2 · puffish_skills-0.19.2-1.19.2-forge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 628.6 KB
    1.19.2The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.19.2-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 619.4 KB
    1.21.11The latest file for its Minecraft version and loader·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-1.21.11-neoforge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 639.1 KB
    1.21.11The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.21.11-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 630.3 KB
    1.19.4The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.19.4-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 621.6 KB
    1.19.4The latest file for its Minecraft version and loader·Forge0.19.20.19.2 · puffish_skills-0.19.2-1.19.4-forge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 630.9 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·NeoForge0.19.20.19.2 · puffish_skills-0.19.2-1.21-neoforge.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 637.5 KB
    1.21 to 1.21.11.21 to 1.21.1The latest file for its Minecraft version and loader·Fabric0.19.20.19.2 · puffish_skills-0.19.2-1.21-fabric.jar (main file)Beta·8 Oct 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 628.7 KB
    26.1 to 26.1.226.1 to 26.1.2·NeoForge0.19.10.19.1 · puffish_skills-0.19.1-26.1-neoforge.jar (main file)Beta·21 Sep 2026PassedOur checks found nothing harmful in this file.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 626.9 KB
    26.1 to 26.1.226.1 to 26.1.2·Fabric0.19.10.19.1 · puffish_skills-0.19.1-26.1-fabric.jar (main file)Beta·21 Sep 2026PassedOur checks found nothing harmful in this file. Its code was read too.Open this file on ModrinthOpen this file on CurseForgeDownload · Beta · 627.1 KB
    1 to 20 of 86412345…44

    Quick fixes

    In the last 2 years, 2 releases needed a quick fix: a new release within 3 days to fix a problem. This counts in the grade, but it is too few to lose points.

    See them, newest first

    Quick fixesReleases followed within 3 days by a new release that fixes a problem in them.2

    • puffish_skills-0.16.8-1.20.2-forge.jar27 Sep 2025Fixed resizing when switching categories. Fixed…
    • puffish_skills-0.15.1-1.20.2-forge.jar22 Feb 2025Fixed points reward. Locked categories can now be…