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Mineforgian

Cesium Storage Format

EXPERIMENTAL: Highly unstable alternative world format for Minecraft. Here be dragons.

Загрузки
22K
Подписчики
101
Обновлён
10 октября 2025 г.
Лицензия
LGPL-3.0-only

Опубликован 20 апреля 2023 г.

Исходный кодСообщить об ошибке

!! UNMAINTAINED !!

Cesium for Fabric

Cesium is an experimental mod designed to improve some flaws of Minecraft’s storage. This mod implements transactional data storage and uses more efficient data compression.

⚠️ Disclaimer

This mod is in an experimental state and could damage your world files. While there are no knows cases of world corruption happening because of this mod, bugs might happen.

Take regular backups of your worlds!

❓ What does this mod do?

With this mod, when chunks and/ or players are being saved, an efficient compression algorithm is used to compress data down to a reasonable size, before it's stored in-memory.

After each server tick, said data is written to disk in a transactional manner, meaning either all data is saved or none at all. This reduces scenarios where saved chunk data and player data become out-of-sync.

Advanced users can even disable compression at all, if they want to take advantage on transparent filesystem compression.

♻️ How do I convert worlds?

The world converter is accessible in the "Edit World" screen.

The converter does not delete any files, so your world folder will take up more disk space after conversion, but you can delete all files and folders that are no longer needed:

  • From Anvil to Cesium: region/, entities/, poi/, advancements/, stats/ and playerdata/.
  • From Cesium to Anvil: chunks.db and players.db.

Create a backup before modifying any files or running the converter!

🧑‍🤝‍🧑 Credits

This mod is based on JellySquid‘s work and uses the following native libraries:

  • facebook/zstd, BSD License. Copyright (c) Meta Platforms, Inc.
  • OpenLDAP/lmdb, The OpenLDAP Public License. Copyright (c) The OpenLDAP Foundation.

  • Libraries provided by:

Ченджлог

0.2.6Бета1.21.9, 1.21.10 · 10 октября 2025 г.

What's Changed

  • Update dependencies
  • Supports 1.21.9 and 1.21.10
0.2.6Релиз1.21.6, 1.21.7, 1.21.8 · 15 сентября 2025 г.

What's Changed

  • Update dependencies

Full Changelog: https://github.com/CesiumMC/cesium-fabric/compare/0.2.5...0.2.6

0.2.5Релиз1.21.5 · 25 марта 2025 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Full Changelog: https://github.com/CesiumMC/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

0.2.5Релиз1.21.4 · 3 декабря 2024 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Full Changelog: https://github.com/CesiumMC/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

0.2.5Релиз1.21.2, 1.21.3 · 23 октября 2024 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Supported game versions

  • 1.20.1
  • 1.20.4
  • 1.20.6-1.21.1
  • 1.21.2-1.21.3

Full Changelog: https://github.com/CesiumMC/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

0.2.5Релиз1.20.1 · 22 октября 2024 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Supported game versions

  • 1.20.1
  • 1.20.4
  • 1.20.6-1.21.1
  • 1.21.2-1.21.3

Full Changelog: https://github.com/CesiumMC/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

0.2.5Релиз1.20.4 · 22 октября 2024 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Supported game versions

  • 1.20.1
  • 1.20.4
  • 1.20.6-1.21.1
  • 1.21.2-1.21.3

Full Changelog: https://github.com/yamayaki1/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

0.2.5Релиз1.20.6, 1.21, 1.21.1 · 22 октября 2024 г.

What's Changed

  • Committing data should no longer block the server thread.
  • Decompression should no longer block other threads from reading data.
  • Reduce default compression level from 12 to 8 (not changed automatically for older config files).
  • Smaller changes for easier back porting to older versions.

Supported game versions

  • 1.20.1
  • 1.20.4
  • 1.20.6-1.21.1
  • 1.21.2-1.21.3

Full Changelog: https://github.com/yamayaki1/cesium-fabric/compare/0.2.4+1.20.6-1.21.1...0.2.5

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