Celestium
A small Minecraft Mod that allow you change skybox easily
About this Mod
Skybox Changer
This is a small mod that lets you easily change the in-game skybox. It's perfect for spicing up your world with different atmospheres, whether you're building, exploring, or taking screenshots.
What it Does
- Change Skybox: Use the
Page Upkey to select a new skybox. - Remove Skybox: Use the
Page Downkey to remove the current skybox. - Support for Multiple Formats: This mod supports two types of skybox images:
- HDRI CubeMap: Images with a 2:1 aspect ratio (Width:Height).
- Normal CubeMap: Images with a 4:3 aspect ratio (Width:Height).
Important Information
- If you select an image with the wrong aspect ratio, the mod will not load it, and the skybox will remain unchanged.
- This mod is designed to be simple and lightweight, focusing solely on skybox management.
Available Versions
How to Install Celestium on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.10).
Install Mod
Open the mod browser in the dashboard and search for "Celestium". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.10, 1.21.5
Server-side
✗ UnsupportedRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Celestium server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.10). You can switch loaders with one click in the panel.
Is Celestium compatible with fabric?
Celestium officially supports fabric for Minecraft 1.21.10, 1.21.5. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Celestium – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Celestium consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Rent Modded Server
Install Celestium with just one click on your server.