Mekanism Additions

Additions module for Mekanism, contains things that don't quite fit in the other modules.

900.3K Downloads

forgeneoforgedecorationmobs

Rent Server with this Mod

About this Mod

Mekanism Additions is an official addon to Mekanism that adds some more miscellaneous features to Mekanism. The majority of these features used to be in the main module back in 1.12 and earlier, but have since then found a new home in this module.

Features:

Baby Mobs:
- Creepers
- Endermen
- Skeletons
- Strays
- Wither Skeletons
Obsidian TNT
Glow Panels
Balloons
Plastic variants of various shapes of blocks
Voice server

Links to other Mekanism modules:

Available Versions

10.7.19.85release

MC 1.21.1neoforge

April 10, 2026

10.7.18.84release

MC 1.21.1neoforge

February 14, 2026

10.7.17.83release

MC 1.21.1neoforge

October 21, 2025

10.7.16.82release

MC 1.21.1neoforge

September 21, 2025

10.7.15.81release

MC 1.21.1neoforge

August 17, 2025

How to Install Mekanism Additions on Your Server

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.21.1).

Install Mod

Open the mod browser in the dashboard and search for "Mekanism Additions". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forgeneoforge

Minecraft Versions

1.21.1, 1.21, 1.20.4 (+11 more)

Server-side

✓ Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Mekanism Additions server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is Mekanism Additions compatible with forge and neoforge?

Mekanism Additions officially supports forge, neoforge for Minecraft 1.21.1, 1.21, 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Mekanism Additions – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Mekanism Additions consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.