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OneBlock 1.21.11 (Mounts of Mayhem)
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OneBlock 1.21.11 (Mounts of Mayhem)

Java data pack listed for Minecraft 1.21. File opened and checked on 8 Oct 2026; downloads from the MC Java Mods app on Android.

by Gamerz_Riot · on Modrinth

Since 2022 | OneBlock is a adventure map with alot of Fun. | 1.21.11 | Mounts of Mayhem is Live! | [Continuation of IJAMinecraft's Oneblock!] | {This is a…

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OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 1OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 2OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 3OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 4OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 5OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 6OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 7OneBlock 1.21.11 (Mounts of Mayhem) — screenshot 8

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OneBlock Reborn

OneBlock Reborn is a Adventure map, it is continuation of IJAMinecraft's OneBlock Map. in this map you will spawn on a single block that floats above the void. The Block is an infinite block and you passes through different phases based on different biomes. The map is full of adventure.

Download OneBlock: https://www.curseforge.com/minecraft/worlds/oneblock-reborn
Download Original (IJAMinecraft) : https://ijaminecraft.com/oneblock

About :

In this map you will spawn on a single block. This map contains 15 phases and each phase has a different and unique theme. You can also enter The Nether or The End.

Blocks and Mobs spawns according to phases in this Map. Calcite and Tuff recipes are added to this map (See Images).  OneBlock Reborn was previously OneBlock Classic.

Original Project can be found on Curseforge

! How to Install ! (Singleplayer)

! How to Install ! (Multiplayer)

Credit / Links

IJAMinecarft's Youtube Channel.
IJAMinecarft's OneBlock Project.

Quick facts

Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.

File checked by MCModsHub

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

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