Old School Minecraft
Fabric and Forge and NeoForge modpack for Minecraft 1.21.1 by Minix
Old School Minecraft runs on Minecraft 1.21.1 with Fabric, Forge and NeoForge. It has 19 mods, needs about 4 GB of RAM (our estimate) and runs on both client and server. The latest version is 1.6, released Dec 7, 2025.
- Minecraft version
- 1.21.1
- Mods
- 19
- RAM to allocate
- 4 GB (estimate)
- Runs on
- Client and server
- Latest version
- 1.6 ()
- Downloads
- 35K (#466)
- First released
- Pack file size
- 3 KB
- License
- MIT
What is Old School Minecraft?
Old School Minecraft is a Fabric, Forge and NeoForge modpack for Minecraft 1.21.1, published by Minix on Modrinth since 2022.
The latest release, 1.6 from Dec 7, 2025, declares 19 mods. Across 22 published versions it has covered Minecraft 1.18 through 1.21.1.
With 35K downloads it ranks #466 of the 518 most-downloaded Modrinth modpacks we track, and its authors tag it as adventure, challenging and combat.
Most widely used mods in Old School Minecraft
The latest version declares 19 projects. The ones below appear in the most packs we track.
- 11 run on client and server
- 7 client only
- 1 server only
How its mod list compares
Less common picks: 8 mods found in five or fewer tracked packs.
Human Reborn
Nostalgic Fishing
Old Combat Mod
Old Netherite Crafts
Old Shield Animation
Old Walking Animaton
Retrocrash
Sword Blocking
Packs with the most mods in common
What kinds of mods are in Old School Minecraft?
Of its 19 mods, 8 are tagged utility, 6 decoration and 4 adventure. Mods can carry several tags, so the counts overlap.
At 32% decoration, that is a larger share than 97% of the 491 packs we track.
- utility: 8 (42%)
- decoration: 6 (32%)
- adventure: 4 (21%)
- library: 4 (21%)
- game mechanics: 3 (16%)
- cursed: 2 (11%)
How big is Old School Minecraft?
With 19 mods, Old School Minecraft has fewer mods than 86% of the 491 packs we track and fewer mods than 91% of the 86 on Minecraft 1.21.1.
The pack file is 3 KB. 7 mods are client-only and 12 also run on a server. It declares no resource packs or shaders.
How actively is Old School Minecraft updated?
Old School Minecraft was first published on Jun 19, 2022, and has 22 published versions in total.
The latest release, 1.6, is dated Dec 7, 2025, 339 days before our data was fetched on Nov 11, 2026. Releases have covered 11 Minecraft versions over 3.5 years.
Staple mods Old School Minecraft includes and leaves out
Across the 325 Fabric packs we track, 15 mods turn up most often. Old School Minecraft includes 4 of them; it leaves out Sodium, Mod Menu, Lithium, FerriteCore, Entity Culling, Iris Shaders, ImmediatelyFast, YetAnotherConfigLib (YACL), Sodium Extra, Reese's Sodium Options and Text Placeholder API.
How much RAM does Old School Minecraft need?
Old School Minecraft needs 4 GB allocated (3 GB minimum). Our estimate from the 19-mod list, not measured.
How to install Old School Minecraft
Search for "Old School Minecraft" in the Modrinth source of your launcher. Pick version 1.6 for Minecraft 1.21.1 (Fabric, Forge and NeoForge). Modpack install guide.
How do I make an Old School Minecraft server?
Old School Minecraft is marked as needing a server-side install, so the server must run the same mods and version as the players.
- Match the version: the latest pack version is 1.6 for Minecraft 1.21.1.
- Loader: Fabric, Forge and NeoForge.
- Memory: at least 3 GB (our estimate).
Versions
Newest build for each of 15 Minecraft version and loader pairs.
| Minecraft | Loader | Pack version | Released |
|---|---|---|---|
| 1.21.1 | Fabric | 1.6 | |
| 1.20.1 | NeoForge | 1.6 | |
| 1.21 | Fabric | 1.5 | |
| 1.20.1 | Fabric | 1.4 | |
| 1.20.1 | Forge | 1.4 | |
| 1.19.4 | Fabric | 1.3 | |
| 1.19.4 | Forge | 1.3 | |
| 1.20 | Forge | 1.2.1 | |
| 1.20 | Fabric | 1.2.1 | |
| 1.18 | Fabric | 1.2.1 | |
| 1.18.1 | Fabric | 1.2.1 | |
| 1.18.2 | Fabric | 1.2.1 | |
| 1.19.2 | Fabric | 1.2.0b2 (beta) | |
| 1.19 | Fabric | 1.2.0b1 (beta) | |
| 1.19.1 | Fabric | 1.2.0b1 (beta) |
Official links
- Old School Minecraft on Modrinth (downloads and changelog)
Facts on this page come from Modrinth's public API, last fetched . Descriptive text is our own. Spotted an error, or are you the author and want something changed? See disclaimer and takedowns.