Biomes O' Cataclysms
by CallaCalca
Biomes O' Cataclysms turns the vanilla challenge of finishing the game into a timed race against a world that is being consumed.
What it does
The mod reshapes survival around a single goal: defeat the Ender Dragon before the world runs out of time. Biomes are destroyed one by one over the course of the run, so a player has to work through the challenge while the map shrinks around them. Biomes O' Cataclysms is published for Fabric and NeoForge on 1.21.1 only, and it runs on client and server, so both the server and every player need it. It is released under All rights reserved, so it is not open source.
Key features
Timed challenge run
The vanilla goal of beating the game is turned into a race against a clock that counts down through the world.
Biomes consumed over time
Biomes are destroyed one at a time as the run goes on, removing terrain that a player might otherwise rely on.
Dragon as the finish line
The run ends when the Ender Dragon is defeated, so surviving the countdown and beating the boss are the same task.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Questions
Does Biomes O' Cataclysms need to be installed on the server?
Which loaders does Biomes O' Cataclysms support?
In the catalog
Biomes O' Cataclysms is one of 2,135 Minigame mods on ModsFinder, and one of 1,454 Minigame mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from CallaCalca
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What the author says
The world of Minecraft is running out of time. Biomes are being consumed one by one: race against the clock, defeat the Dragon, and survive the end of the world!! Visit the wiki link to learn more about the mod functions!
Official listing
- Modrinth page
- modrinth.com/mod/biomes-o-cataclysms
- Owner
- CallaCalca
- Published
- 2026-04-22
- Updated on Modrinth
- 2026-08-03
- Facts verified
- 2026-10-15