mod
Supplementaries SquaredMinecraft mod for 1.21.1
The extra content of Supplementaries that doesn't necessarily fit in the base mod!
- Latest version
- 1.21-1.2.18
- Minecraft
- 1.19.2 to 1.21.1
- Java
- Java 21+
- Loaders
- Fabric, NeoForge, Forge
- Licence
- LicenseRef-All-Rights-Reserved
- Downloads
- 4.0M
- Updated
- 5 mo ago
- Available on
- Modrinth
Our hostingHost Supplementaries Squared servers
One click and Supplementaries Squared is installed with the right loader, on hardware built for it.
- 1.21.1
- Fabric
- NeoForge
- Forge
- One click mod install
- Loader matched for you
- Ryzen CPUs
- NVMe SSD
Minecraft versions
Every version Supplementaries Squared declares support for, newest first, with the Java runtime that version needs.
Download
From Supplementaries Squared’s own host. Nothing is re-hosted here.
Browse 32 indexed releasesFor Minecraft 1.21.1
Choose the loader you use before downloading.
- Choose file on publisher ↗
Fabric, NeoForge
1.21-1.2.18 · 17 Jun 2026
Multiple loaders are listed; verify the file before downloading.
- Get Fabric
Fabric
fabric_1.21-1.2.17 · 19 Dec 2025 · suppsquared-1.21-1.2.17-fabric.jar
- Get NeoForge
NeoForge
neoforge_1.21-1.2.17 · 19 Dec 2025 · suppsquared-1.21-1.2.17-neoforge.jar
Most recently published release
suppsquared-fabric-1.21-1.2.18.jar · 0.7 MB · for 1.21.1 · Fabric, NeoForge
ed882f7ea6b4…Older versions24Hide older versions
- 1.20-1.1.2910 Jan 20261.20.10.7 MB
8d80656d0cfa…Choose file on publisher ↗ - fabric_1.21-1.2.1719 Dec 20251.21.1, 1.210.7 MB
267ce5f883e6…Get - neoforge_1.21-1.2.1719 Dec 20251.21.1, 1.210.7 MB
19b9fdb01b79…Get - 1.20-1.1.287 Dec 20251.20.10.9 MB
69d7b650fdf7…Choose file on publisher ↗ - 1.20-1.1.2721 Nov 20251.20.10.9 MB
54c54e0c1e23…Choose file on publisher ↗ - fabric_1.21-1.2.1520 Oct 20251.21.1, 1.210.7 MB
52bc74dbc34c…Get - 1.20-1.1.2617 Oct 20251.20.10.9 MB
705e9e561c52…Get - 1.20-1.1.2517 Oct 20251.20.10.7 MB
69e8bd3b11ef…Choose file on publisher ↗ - 1.20-1.1.2417 Oct 20251.20.10.9 MB
1e953ce8b414…Choose file on publisher ↗ - neoforge_1.21-1.2.1417 Oct 20251.21.1, 1.210.7 MB
a803aabb4795…Get - fabric_1.21-1.2.1417 Oct 20251.21.1, 1.210.2 MB
44f44eb197c8…Get - fabric_1.21-1.2.1330 Sept 20251.21.1, 1.210.7 MB
4afe35aa2d6e…Get - neoforge_1.21-1.2.1330 Sept 20251.21.1, 1.210.7 MB
a9423e227310…Get - 1.20-1.1.2323 Aug 20251.20.10.9 MB
5f10aebbca16…Choose file on publisher ↗ - fabric_1.21-1.2.1220 Aug 20251.21.1, 1.210.7 MB
87fabbc95e49…Get - neoforge_1.21-1.2.1220 Aug 20251.21.1, 1.210.7 MB
fcc06be5dd8f…Get - fabric_1.21-1.2.1119 Aug 20251.21.1, 1.210.7 MB
f005af05939c…Get - neoforge_1.21-1.2.1119 Aug 20251.21.1, 1.210.7 MB
f3f5a78b7822…Get - 1.20-1.1.2215 Aug 20251.20.10.9 MB
5036b2b4433b…Choose file on publisher ↗ - neoforge_1.21-1.2.1021 Jul 20251.21.1, 1.210.7 MB
d71d000a82c9…Get - fabric_1.21-1.2.1021 Jul 20251.21.1, 1.210.7 MB
5cfa726fe6d0…Get - fabric_1.21-1.2.920 Jul 20251.21.1, 1.210.7 MB
90e1ec88f127…Get - neoforge_1.21-1.2.920 Jul 20251.21.1, 1.210.7 MB
82049a161bac…Get - neoforge_1.21-1.2.84 Apr 20251.21.1, 1.210.7 MB
1d392837f7be…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.
Do I need to install Supplementaries Squared on the client or the server?
Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.
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.
What licence is Supplementaries Squared under?
LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.
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 Modrinth, 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.
Is this information wrong or missing something? .