How do I install Project 4J?

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 Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Project 4J work with?

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

Home›Java›Modpacks›Project 4J

ModpacksJava

Project 4J

by Cixon · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

1_a

2_new

3_new

You remember Console Edition. The music. The terrain. The skin‑packs.

Now imagine that with custom mobs, new dimensions, and dungeon galore.

✨ Main Mods & Features

👤 3D Skin Pack Models – preloaded with plenty of awesome skins!
🗺️ Classic TU14 Terrain – (Beta-style 1.2.5 worldgen)
🎮 Controller Support – recommended to play with any controller!
🌌 BetterEnd Overhaul – explore new End biomes & islands
👹 Exclusive Custom Enemies
🌐 Free Multiplayer thanks to WorldHost!
🏰 Expanded Dungeons
🐲 Overworld Dragons – don't worry! only attack if provoked; high risk high reward!

❓ FAQ — Quick Answers

How do I unlock more End islands?

Respawn and defeat the Ender Dragon again

Every new kill = unlocks 1 new island.

How do I play Multiplayer for free?

Open your world.
Press Back (controller) or H (keyboard).
Use the button displayed at the bottom left. Go Online.
Once Online, invite friends the same way!

ONLY WORKS IF YOUR ROUTER HAS UPnP ENABLED

Where do I report bugs?

Github

Need the wiki?

Also Github, lol

🖥️ Server Pack

Want to host your own server?
👉 Download Server version

🙏 Special Thanks

GallonEmilien – Doped Horses mod
Blackgear – Stay Still AI mod
Jab125 – Limited Worlds mod
omoso / bowen - Aided in optimizing!
Purple_Zombie – Custom mob inspiration
PoeticRainbow – Golden Days visual style

📦 Resource Pack & Mod Permissions

Golden Days RP
➤ All rights to PoeticRainbow
Golden Days Permission

Programmer Art Continuation Project (PACP)
➤ Textures from mzov_jen
PACP Permission

📁 JAR File Permissions

staystill-1.0.0.jar
➤ Approved by Blackgear
staystill_jar

limited-worlds-0.0.5.jar
➤ Approved by Jab125
📜 Permission Gist
origin_jar_limited_worlds

❤️ Support & Feedback

If you enjoy the pack, leave a ❤️ or share on Tiktok/Youtube.
This helps small creators like me get discovered! Thanks!

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 1.21.11
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 Modrinth — 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.

Verified by MCModsHub

Downloads as Project 4J 1.1.mrpack
Download size: 77.7 MB
Download link checked 28 Aug 2026 — working

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

Explore more

All Modpacks for Java All Minecraft Java mods Java mods for 1.21