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Deltabox LibMinecraft mod for 1.21.1

A Kotlin library for all Deltabox mods!

newest supported release 1.21.1Utility QolAdventure RpgLibrary ApiMc Addons
Latest version
deltaboxlib-fabric-3.0.1+1.21.1.jar
Loaders
Fabric, Forge
Licence
not stated
Downloads
7.2M
Updated
9 mo ago
Available on
CurseForge

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Deltabox Lib declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, Forge21+declared8 Aug 2024
1.20.1Fabric, Forge17+declared12 Jun 2023

Download

From Deltabox Lib’s own host. Nothing is re-hosted here.

Most recently published release

deltaboxlib-fabric-3.0.1+1.21.1.jarrelease13 Feb 2026

deltaboxlib-fabric-3.0.1+1.21.1.jar · 0.9 MB · for 1.21.1 · Fabric

Download this release
3b9a6338a7e4…
Older versions13
  • deltaboxlib-fabric-3.0.0+1.21.1.jar29 Jan 20261.21.10.9 MB727 downloads31a45ed590e0…Get
  • deltaboxlib-fabric-2.2.0+1.20.1.jar21 Jun 20251.20.10.8 MB756.3k downloadsc708db411177…Get
  • deltaboxlib-forge-2.2.0+1.20.1.jar21 Jun 20251.20.10.8 MB2 downloads8f5cd619b02e…Get
  • deltaboxlib-2.1.1-fabric-1.20.1.jar28 Apr 20251.20.11.0 MB283.0k downloadsc67fe294466f…Get
  • deltaboxlib-2.1.1-forge-1.20.1.jar28 Apr 20251.20.10.9 MB124.9k downloads3c4441309df6…Get
  • deltaboxlib-2.1.0-fabric-1.20.1.jar17 Apr 20251.20.11.0 MB836 downloads1961eecd442f…Get
  • deltaboxlib-2.1.0-forge-1.20.1.jar17 Apr 20251.20.10.9 MB72.8k downloadsfb5ac8d5d7d0…Get
  • deltaboxlib-1.20.1-fabric-2.0.0.jar5 Apr 20251.20.11.0 MB963 downloadsed2dfb0b5517…Get
  • deltaboxlib-1.1.3.jar23 Jan 20251.20.10.7 MB766.1k downloads96cd6b863fa2…Get
  • deltaboxlib-1.1.2.jar31 Oct 20241.20.10.7 MB152.7k downloadsd57c7c362ff2…Get
  • deltaboxlib-1.1.1.jar25 Oct 20241.20.10.7 MB975 downloads4984343f34b4…Get
  • deltaboxlib-1.1.0.jar18 Sept 20241.20.10.6 MB15.8k downloads51fabc114f1b…Get
  • deltaboxlib-1.0.0.jar31 Aug 20241.20.10.5 MB686 downloads0cf739af7845…Get

Frequently asked

Does Deltabox Lib work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Deltabox Lib declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Deltabox Lib support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which platform or loader does Deltabox Lib support?

Fabric, Forge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Deltabox Lib?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

How do I install Deltabox Lib?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Deltabox Lib safely?

Start with the author's page on CurseForge, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from CurseForge, where the author last updated it on 13 Feb 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .