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Supplementaries SquaredMinecraft mod for 1.21.1

The extra content of Supplementaries that doesn't necessarily fit in the base mod!

newest supported release 1.21.1CosmeticMc Addons
Latest version
suppsquared-1.21-1.2.18-fabric
Minecraft
1.19.2 to 1.21.1
Java
Java 21+
Loaders
Fabric, NeoForge, Forge
Licence
not stated
Downloads
33.3M
Updated
4 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 Supplementaries Squared declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric, NeoForge, Forge21+declared8 Aug 2024
1.21NeoForge, Fabric, Forge21+declared13 Jun 2024
1.20.1Fabric, NeoForge, Forge17+declared12 Jun 2023
1.20NeoForge, Fabric, Forge17+declared2 Jun 2023
1.19.2Fabric, NeoForge, Forge17+declared5 Aug 2022

Download

From Supplementaries Squared’s own host. Nothing is re-hosted here.

Browse 36 indexed releases

For Minecraft 1.21.1

Choose the loader you use before downloading.

  • Fabric

    suppsquared-1.21-1.2.18-fabric · 17 Jun 2026 · suppsquared-fabric-1.21-1.2.18.jar

    Get Fabric

  • NeoForge

    suppsquared-1.21-1.2.18-neoforge · 17 Jun 2026 · suppsquared-neoforge-1.21-1.2.18.jar

    Get NeoForge

Most recently published release

suppsquared-1.21-1.2.18-fabricrelease17 Jun 2026

suppsquared-fabric-1.21-1.2.18.jar · 0.7 MB · for 1.21.1 · Fabric

Download this release
7de2cea14aec…
Older versions24
  • suppsquared-1.21-1.2.18-neoforge17 Jun 20261.21.10.7 MB0b6845d2afd2…Get
  • suppsquared-1.20-1.1.29.jar10 Jan 20261.20.10.7 MB553 downloads69c3d2c78766…Get
  • suppsquared-1.21-1.2.17-fabric.jar19 Dec 20251.21.1, 1.210.7 MB208 downloads9ad85b571e7f…Get
  • suppsquared-1.21-1.2.17-neoforge.jar19 Dec 20251.21.1, 1.210.7 MB1 downloada0832a812771…Get
  • suppsquared-1.20-1.1.28.jar7 Dec 20251.20.10.9 MB7.4k downloadsfce110da725d…Get
  • suppsquared-1.20-1.1.27.jar21 Nov 20251.20.10.9 MB3.6k downloads03d256d7b32c…Get
  • suppsquared-1.21-1.2.15-fabric.jar20 Oct 20251.21.1, 1.210.7 MB1.1k downloads892d1c487c3e…Get
  • suppsquared-1.20-1.1.26.jar17 Oct 20251.20.10.9 MB29.8k downloadsd564561b2676…Get
  • suppsquared-1.20-1.1.25.jar17 Oct 20251.20.10.9 MBb6a833a1b338…Get
  • suppsquared-1.20-1.1.24.jar17 Oct 20251.20.10.9 MB79da829cd0b5…Get
  • suppsquared-1.20-1.1.24-fabric.jar17 Oct 20251.20.10.7 MB6e0aedf24942…Get
  • suppsquared-1.21-1.2.14-neoforge.jar17 Oct 20251.21.1, 1.210.7 MB21f4d14de4f3…Get
  • suppsquared-1.21-1.2.14-fabric.jar17 Oct 20251.21.1, 1.210.2 MB92fd40763f06…Get
  • suppsquared-1.21-1.2.13-fabric.jar30 Sept 20251.21.1, 1.210.7 MB284 downloads2a0c1ec13ed7…Get
  • suppsquared-1.21-1.2.13-neoforge.jar30 Sept 20251.21.1, 1.210.7 MBe1c167684d14…Get
  • suppsquared-1.20-1.1.23.jar23 Aug 20251.20.10.9 MBc69d96d413b5…Get
  • suppsquared-1.20-1.1.23-fabric.jar23 Aug 20251.20.10.7 MBd01b4d130706…Get
  • suppsquared-1.21-1.2.12-fabric.jar20 Aug 20251.21.1, 1.210.7 MB0ee47864d865…Get
  • suppsquared-1.21-1.2.12-neoforge.jar20 Aug 20251.21.1, 1.210.7 MB1e3da418ef20…Get
  • suppsquared-1.21-1.2.11-fabric.jar19 Aug 20251.21.1, 1.210.7 MB5926971b31dd…Get
  • suppsquared-1.21-1.2.11-neoforge.jar19 Aug 20251.21.1, 1.210.7 MB0f91c2346a66…Get
  • suppsquared-1.20-1.1.22.jar15 Aug 20251.20.10.9 MBad8dc1e85fd3…Get
  • suppsquared-1.20-1.1.22-fabric.jar15 Aug 20251.20.10.7 MBb139918de276…Get
  • suppsquared-1.21-1.2.10-neoforge.jar21 Jul 20251.21.1, 1.210.7 MBbdd252f0bf72…Get

Frequently asked

Does Supplementaries Squared work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Supplementaries Squared 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 Supplementaries Squared support?

Everything the author has declared, from 1.19.2 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 Supplementaries Squared support?

Fabric, NeoForge, 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 Supplementaries Squared?

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 Supplementaries Squared?

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 Supplementaries Squared 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.

BookshelfAn open source library for other mods!GeckoLibA 3D animation library for entities, blocks, items, armor, and more!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from CurseForge, where the author last updated it on 17 Jun 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? .