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Mysterious Mountain LibMinecraft mod for 1.21.1

a library for MMF-Group's mod

newest supported 1.21.1Library Api
Latest version
mysterious_mountain_lib-1.2.15-1.21.1.jar
Minecraft
1.12.2 to 1.21.1
Java
Java 21+
Loaders
Forge, NeoForge
Licence
not stated
Downloads
19.5M
Updated
5 mo ago
Available on
CurseForge

Minecraft versions

Every version Mysterious Mountain Lib declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.21NeoForge, Forge21+declared13 Jun 2024
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.20Forge, NeoForge17+declared2 Jun 2023
1.19.4Forge, NeoForge17+declared14 Mar 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1NeoForge, Forge17+declared27 Jul 2022
1.19NeoForge, Forge17+declared7 Jun 2022
1.18.2Forge, NeoForge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.12.2NeoForge, Forge8+declared18 Sept 2017

Download

From Mysterious Mountain Lib’s own host. Nothing is re-hosted here.

All 40 releases
mysterious_mountain_lib-1.2.15-1.21.1.jarrelease5 Apr 2026

mysterious_mountain_lib-1.2.15-1.21.1.jar · 0.3 MB · for 1.21.1

Download latest
8cede0ac47ae…
Older versions24
  • mysterious_mountain_lib-1.6.34-1.20.1.jar16 Feb 20261.20.10.3 MB5.3k downloads4fb6e35edf93…Get
  • mysterious_mountain_lib-1.6.30-1.20.1.jar26 Oct 20251.20.10.3 MB2.1k downloads266368755f96…Get
  • mysterious_mountain_lib-1.6.29-1.20.1.jar26 Oct 20251.20.10.3 MB2.4k downloads0458b6a1d960…Get
  • mysterious_mountain_lib-1.6.28-1.20.1.jar26 Oct 20251.20.10.3 MB934ed6fd4992…Get
  • mysterious_mountain_lib-1.5.26-1.20.1.jar27 Sept 20251.20.10.3 MB2.5k downloads830539d5ad0e…Get
  • mysterious_mountain_lib-1.5.24-1.20.1.jar2 Sept 20251.20.10.3 MB3d8faf3c9e7a…Get
  • mysterious_mountain_lib-1.2.14-1.21.1.jar26 Aug 20251.21.10.3 MB6cff50c27344…Get
  • mysterious_mountain_lib-1.5.23-1.20.1.jar15 Aug 20251.20.10.3 MB735ca96668dc…Get
  • mysterious_mountain_lib-1.5.22-1.20.1.jar16 Jun 20251.20.10.3 MB102.1k downloads541526a73a93…Get
  • mysterious_mountain_lib-1.5.21-1.20.1.jar5 May 20251.20.10.3 MB115.5k downloadse4c82416aa0a…Get
  • mysterious_mountain_lib-1.5.19-1.20.1.jar3 Mar 20251.20.10.3 MB403.1k downloads631691d5dbbf…Get
  • mysterious_mountain_lib-1.5.18-1.20.1.jar24 Feb 20251.20.10.3 MB28.7k downloads70a29e7a65d4…Get
  • mysterious_mountain_lib-1.1.8-1.21.1.jar28 Oct 20241.21.10.3 MB97.5k downloadsedd57b9f3007…Get
  • mysterious_mountain_lib-1.1.7-1.21.1.jar24 Oct 20241.21.10.3 MB740 downloads9077a581de49…Get
  • mysterious_mountain_lib-1.5.17-1.20.1.jar24 Oct 20241.20.10.3 MB1.3M downloads9bbd4c38cbd0…Get
  • mysterious_mountain_lib-1.1.6-1.21.1.jar24 Oct 20241.21.10.3 MB172 downloads1b3a9a88883a…Get
  • mysterious_mountain_lib-1.5.15-1.20.1.jar24 Oct 20241.20.10.3 MB3.6k downloads95e622e32e44…Get
  • mysterious_mountain_lib-1.0.2-1.21.1.jar22 Oct 20241.21.10.3 MB369 downloads454902051a51…Get
  • mysterious_mountain_lib-1.0.1-1.21.jar13 Sept 20241.210.3 MB4.4k downloads0a463fa1a8c4…Get
  • mmlib-1.4.7-1.18.2.jar10 Jun 20241.18.20.3 MB59.1k downloadsdbafcc088c1a…Get
  • mysterious_mountain_lib-1.4.7-1.20.1.jar10 Jun 20241.20.10.3 MB1.8M downloadsde6e8dd8d55f…Get
  • mysterious_mountain_lib-1.4.5-1.20.1.jar31 Mar 20241.20.10.3 MB1.3M downloadsd321fcca0872…Get
  • mysterious_mountain_lib-1.4.4-1.20.1.jar6 Mar 20241.20.10.3 MB433.6k downloads00bc3efc6edf…Get
  • mmlib-1.4.5-1.18.2.jar31 Dec 20231.18.20.3 MB128.0k downloads0b9b102df89a…Get

Frequently asked

Does Mysterious Mountain Lib work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Mysterious Mountain Lib 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 Mysterious Mountain Lib support?

Everything the author has declared, from 1.12.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which loader does Mysterious Mountain Lib need?

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

Which Java version do I need for Mysterious Mountain Lib?

On the newest Minecraft release it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

How do I install Mysterious Mountain Lib?

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 Mysterious Mountain Lib safely?

From the author's own page on CurseForge, 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 1 mo ago against CurseForge. 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? .