The One And Only Mania
Java modpack listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21.1 on Fabric. On other versions it may install and then do nothing.
DISCLAIMER: This modpack is still in development. Mods, features, and balance may change as development continues.
Step into a ruthless and unforgiving fantasy medieval world where survival depends on strength and skill. Combat is challenging, exploration is dangerous, and only the strongest warriors will survive.
This modpack is made for multiplayer adventure, where players can form kingdoms, build alliances, and conquer the world together!
This modpack combines many powerful mods to make a challenging adventure:
1000+ Medieval style weapons
300+ Quests to complete
20 New bosses
New biomes
And much more to explore!
Along with the leveling system and quests that help you on your journey
To survive in this realm of gods and monsters, you must:
- Create or join kingdoms
- Complete quests as you explore the world
- Level up your abilities and become stronger
- Explore dangerous structures across multiple dimensions
- Craft powerful weapons and gather rare artifacts
- Defeat powerful bosses with your allies
- Prepare to challenge the goddesses|
Prove your strength!
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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.
- Downloads as The One And Only Mania main-1.5.2b.zip
- Download size: 2.1 MB
- Download link checked 2 Oct 2026 — working
These come from our own check of the pack file, not from the source page.