
Modrinth · Minecraft mod
Eclipse Core
Controls eclipse and lunar events, syncing difficulty, weather, and progression for hardcore servers.
Quick answer
Which Eclipse Core release should I use?
Eclipse Core 1.0.0 targets 1.20.1 with Fabric. Do not install it on the client. It must be installed on the dedicated server. All 4 required mods have matching files.
Where it goes
Is Eclipse Core required on the client, server, or both?
Do not install it on the client. It must be installed on the dedicated server.
This file is marked server-only.
What else does Eclipse Core 1.0.0 need?
1.0.0. Change the file and its required mods may change too.
Install Enhanced Celestials, Fabric API, CorgiLib, Data Anchor first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Eclipse Core without breaking your instance.
Built for Eclipse Core 1.0.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.0.0. It targets 1.20.1 with Fabric; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Enhanced Celestials, Fabric API, CorgiLib, Data Anchor first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 03
Put it on the correct side
Do not install it on the client. It must be installed on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.0.0. It opens that exact file at the source.
About this project
What does Eclipse Core add?
Eclipse Core 1.0.0
- Automatic scheduled Blood Moon events (Enhanced Celestials)
- Triggers at fixed real-time times during a session
- Clears weather before triggering when needed
- Increases difficulty during Blood Moon and restores it at dawn
- Server-side only (works in singleplayer too)
Project description from Modrinth.
Pick your setup
Eclipse Core by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Eclipse Core versions and loaders
1.0.0
eclipse-core-1.0.0.jar
7 Feb 2026
Looking for an older file? The official Modrinth project page is in Resources.