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Cesium Storage Format
EXPERIMENTAL: Highly unstable alternative world format for Minecraft. Here be dragons.
20.1k
99
Cursed
Download
Compatibility
Minecraft: Java Edition
1.21–1.21.10
1.20.4–1.20.6
1.20–1.20.2
Platforms
Fabric
Quilt
Supported environments
Server-side
Singleplayer
Links
Report issues
View source
Visit wiki
Creators
CesiumMC
Organization
Details
Licensed
LGPL-3.0-only
Published 3 years ago
Updated 3 months ago
Description
Gallery
Changelog
Versions
All versions
Cesium 0.2.6 for Minecraft 1.21.9 and 1.21.10
Cesium 0.2.6 for Minecraft 1.21.9 and 1.21.10
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Report
Changelog
What's Changed
Update dependencies
Supports 1.21.9 and 1.21.10
Files
cesium-fabric+1.21.10-0.2.6.jar
(11.1 MiB)
Primary
Download
cesium-fabric+1.21.10-0.2.6-sources.jar
(144.33 KiB)
Download
Metadata
Release channel
Beta
Version number
0.2.6
Loaders
Fabric
Quilt
Game versions
1.21.9–1.21.10
Environment
Server-side only, works in singleplayer too
Downloads
296
Publication date
October 10, 2025 at 6:34 PM
Version ID
RGnTbk5s
