How do I install Experimentalist?

Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. Download the .jar. Put it in the .minecraft/mods folder and launch that loader profile. Opens on CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Experimentalist work with?

The listing gives Minecraft 1.21.11, 1.20.2, 1.20.5, among others. This is the version stated by the author or source site, not something we verified ourselves.

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Experimentalist

Java mod listed for Minecraft 1.20–1.21. Downloads from the MC Java Mods app on Android.

by pajic · on CurseForge

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric3 builds
Mod loader NeoForge2 builds
Mod loader Forge1 build

Minecraft version

Minecraft 1.21.11Newest
Minecraft 1.21–1.21.10
Minecraft 1.20–1.20.6

Minecraft 1.21.11Newest
Minecraft 1.21–1.21.10

Minecraft 1.20–1.20.6Newest

⬇ Download for 1.21.11 · Fabric ⬇ Download for 1.21–1.21.10 · Fabric ⬇ Download for 1.20–1.20.6 · Fabric ⬇ Download for 1.21.11 · NeoForge ⬇ Download for 1.21–1.21.10 · NeoForge ⬇ Download for 1.20–1.20.6 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Experimentalist

This mod removes the "Worlds using Experimental Settings are not supported" screen and allows you to enable experimental features globally. Those features will then be enabled by default on world creation and hidden from the experimental features screen. Worlds using those features will not be flagged as experimental and will not show the "Experimental" flavor text in the world selection screen.

This mod has no dependencies (not even Fabric API).

Use cases

This mod can be useful for modpack authors who want to enable the experimental features available in Minecraft in their modpack in a way that requires no user interaction and is invisible to the user, or just for convenience if you like playing with experimental features.

Configuration

By default, none of the experimental features are enabled globally. To make an experimental feature global, open the experimentalist.json config file in the mod config folder and change the value for the desired feature from false to true. This config file will be created after launching the game for the first time after installing the mod, and the changes you make will apply after restarting the game.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.11, 1.20.2, 1.20.5
How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.

Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.

File checked by MCModsHub

Ships as experimentalist-2.0.3+1.20.x-forge.jar — drop this file into the mods folder
Download size: 676 KB
Download link checked 28 Sept 2026 — working

These come from our own check of the pack file, not from the source page.

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All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20