Hydrogen icon

Hydrogen

Fabric modpack for Minecraft 26.3 by Exsytic

Hydrogen runs on Minecraft 26.3 with Fabric. It has 33 mods, needs about 4 GB of RAM (our estimate) and is client-only. The latest version is 10.0.2-26.3, released Oct 31, 2026.

Minecraft version
26.3
Mod loader
Fabric
Mods
33
RAM to allocate
4 GB (estimate)
Runs on
Client only
Latest version
10.0.2-26.3 ()
Downloads
53K (#337)
First released
Pack file size
16 KB
License
All Rights Reserved

What is Hydrogen?

Hydrogen is a Fabric modpack for Minecraft 26.3, published by Exsytic on Modrinth since 2023.

The latest release, 10.0.2-26.3 from Oct 31, 2026, declares 33 mods. Across 436 published versions it has covered Minecraft 1.19.3 through 26.3.

With 53K downloads it ranks #337 of the 518 most-downloaded Modrinth modpacks we track, and its authors tag it as lightweight and optimization.

Most widely used mods in Hydrogen

The latest version declares 33 projects. The ones below appear in the most packs we track.

  • 10 run on client and server
  • 22 client only
  • 1 server only

Full Hydrogen mod list

How its mod list compares

Less common picks: 1 mod found in five or fewer tracked packs.

Packs with the most mods in common

What kinds of mods are in Hydrogen?

Of its 33 mods, 21 are tagged utility, 13 optimization and 5 library. Mods can carry several tags, so the counts overlap.

At 15% management, that is a larger share than 99% of the 491 packs we track.

  • utility: 21 (64%)
  • optimization: 13 (39%)
  • library: 5 (15%)
  • management: 5 (15%)
  • adventure: 3 (9%)
  • decoration: 3 (9%)

How big is Hydrogen?

With 33 mods, Hydrogen has fewer mods than 68% of the 491 packs we track and fewer mods than 51% of the 63 on Minecraft 26.3.

The pack file is 16 KB. 22 mods are client-only and 11 also run on a server. It declares no resource packs or shaders.

How actively is Hydrogen updated?

Hydrogen was first published on Feb 5, 2023, and has 436 published versions in total.

The latest release, 10.0.2-26.3, is dated Oct 31, 2026, 11 days before our data was fetched on Nov 11, 2026. Releases have covered 23 Minecraft versions over 3.7 years.

Staple mods Hydrogen includes and leaves out

Across the 325 Fabric packs we track, 15 mods turn up most often. Hydrogen includes 11 of them; it leaves out YetAnotherConfigLib (YACL), Reese's Sodium Options, Text Placeholder API and Architectury API.

How much RAM does Hydrogen need?

Hydrogen needs 4 GB allocated (2 GB minimum). Our estimate from the 33-mod list, not measured.

How to set allocated memory

How to install Hydrogen

Search for "Hydrogen" in the Modrinth source of your launcher. Pick version 10.0.2-26.3 for Minecraft 26.3 (Fabric). Modpack install guide.

Does Hydrogen need a server install?

No: Hydrogen is marked client-only on Modrinth, so there is no server install and players can join an ordinary server running Minecraft 26.3.

Modpack server guide.

Versions

Newest build for each of 23 Minecraft version and loader pairs, 15 shown.

MinecraftLoaderPack versionReleased
26.3Fabric10.0.2-26.3
26.2Fabric9.0.9-26.2
26.1.2Fabric8.2.11-26.1.2
1.21.11Fabric7.1.11-1.21.11
26.1.1Fabric8.1.0-Alpha1 (alpha)
26.1Fabric8.0.0-Alpha2 (alpha)
1.21.10Fabric7.0.0-1.21.10
1.21.8Fabric7.0.0-1.21.8
1.21.4Fabric7.0.0-1.21.4
1.21.1Fabric7.0.0-1.21.1
1.21.9Fabric6.1.1-1.21.9-Beta (beta)
1.21.7Fabric5.8.1-1.21.7-fabric
1.21.6Fabric5.8.1-1.21.6-fabric
1.21.5Fabric5.8.1-1.21.5-fabric
1.21.3Fabric5.5.9-1.21.3