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CatalystMinecraft mod for b1.7.3

Advanced modding library for special and legacy versions of Minecraft.

client and servernewest supported b1.7.3Game MechanicsLibrary
Latest version
1.3.3+stapi
Minecraft
b1.7.3
Java
follows the game
Loader
Fabric
Licence
MIT
Downloads
10.5k
Updated
2 mo ago
Available on
Modrinth
Space NodePartner

Host Catalyst servers

One click and Catalyst is installed with the right loader, on hardware built for it.

  • b1.7.3
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

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

Other mods
MinecraftThroughJavaEvidenceReleased
b1.7.3Fabric8+declared7 Jul 2011

Download

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

All 60 releases
1.3.3+stapirelease2 Jun 2026

catalyst-all-1.3.3+stapi.jar · 0.2 MB · for b1.7.3

Download latest
00010d53be0e…
Older versions24
  • 1.3.2+stapi2 Jun 2026b1.7.30.2 MB11 downloadsa3f5ffe33a03…Get
  • 1.3.1+stapi30 May 2026b1.7.30.2 MB35 downloadsf06777c0f41a…Get
  • 2.12.016 May 2026b1.7.31.0 MB415 downloads7d5f740e5488…Get
  • 1.3.0+stapi9 Apr 2026b1.7.30.2 MB273 downloads7131f774b74e…Get
  • 2.11.025 Jan 2026b1.7.30.9 MB1.3k downloadsd00636e0c95b…Get
  • 1.2.1+stapi25 Jan 2026b1.7.30.2 MB325 downloads46a3c3033b3e…Get
  • 1.2.0+stapi24 Jan 2026b1.7.30.2 MB41 downloadsf72f00d4e0d3…Get
  • 2.10.37 Dec 2025b1.7.30.9 MB761 downloads99640bcfa30b…Get
  • 2.10.27 Nov 2025b1.7.30.9 MB348 downloadse7255a0f0894…Get
  • 2.10.11 Nov 2025b1.7.30.9 MB67 downloadsf8b103f994da…Get
  • 2.10.01 Nov 2025b1.7.30.9 MB30 downloadsc87ef3134e40…Get
  • 2.9.024 Oct 2025b1.7.30.9 MB122 downloads046760e1c00a…Get
  • 2.8.120 Oct 2025b1.7.30.9 MB61 downloads81a08df1b83f…Get
  • 2.8.012 Oct 2025b1.7.30.9 MB108 downloadsac162152aba4…Get
  • 2.7.06 Oct 2025b1.7.30.9 MB60 downloads1e27845f154a…Get
  • 2.6.128 Sept 2025b1.7.30.9 MB79 downloads3299af1b7de5…Get
  • 2.6.028 Sept 2025b1.7.30.9 MB35 downloadsf4808839d0f3…Get
  • 2.5.024 Sept 2025b1.7.30.9 MB55 downloadsa69e0cef95f2…Get
  • 1.1.1+stapi7 Sept 2025b1.7.30.2 MB325 downloads6fd4022eb75a…Get
  • 1.1.0+stapi5 Sept 2025b1.7.30.2 MB56 downloads89c9d7ee58c0…Get
  • 1.0.0+stapi20 Aug 2025b1.7.30.2 MB100 downloads58e7ebb5d866…Get
  • 2.4.016 Aug 2025b1.7.30.9 MB284 downloads9f4e1adbff05…Get
  • 2.3.511 Aug 2025b1.7.30.9 MB58 downloadsb020eb66ebd1…Get
  • 2.3.410 Aug 2025b1.7.30.9 MB34 downloads1380f9e855a7…Get

Frequently asked

Does Catalyst work on Minecraft b1.7.3?

Yes. b1.7.3 is the newest Minecraft version Catalyst declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Do I need to install Catalyst 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 loader does Catalyst need?

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

What licence is Catalyst under?

MIT, 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 Catalyst?

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 Catalyst safely?

From the author's own page on Modrinth, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

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

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Last checked 6 d ago against Modrinth. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .