CurseForge · Minecraft mod
Package : Core
A mod that adds compressed items.
Quick answer
Which Package : Core release should I use?
Package : Core package_mod_core-1.1.5.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Package : Core required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Package : Core package_mod_core-1.1.5.jar need?
package_mod_core-1.1.5.jar. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Package : Core without breaking your instance.
Built for Package : Core package_mod_core-1.1.5.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use package_mod_core-1.1.5.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside package_mod_core-1.1.5.jar. It opens that exact file at the source.
About this project
What does Package : Core add?
Package MOD : core



English (translated)
This mod primarily adds compression items. It can compress items up to a maximum of 2^31.
It also adds several useful items.
I plan to create a few more mods in the future.
日本語
主に圧縮アイテムを追加するmod。最大で2^31まで圧縮できる。
また、いくつかの便利アイテムも追加する。
今後いくつかの追加modを制作する予定です。
Project description from CurseForge.
Pick your setup
Package : Core by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Package : Core versions and loaders
package_mod_core-1.1.5.jar
29 Aug 2026
package_mod_core-1.1.4.jar
25 Jul 2026
package_mod_core-1.1.3.jar
26 Jun 2026
package_mod_core-1.1.2.jar
6 Jun 2026
package_mod_core-1.1.1.jar
6 Jun 2026
package_mod_core-1.1.0.jar
6 Jun 2026
package_mod_core-1.0.0.jar
5 Jun 2026
Looking for an older file? The official CurseForge project page is in Resources.