Addendum

Adding new blocks to fit your ender palette!

25 Downloads

neoforgedecoration

Rent Server with this Mod

Screenshots

About this Mod

Addendum is a port of the Additional Ender Blocks mod by cleverpanda714, which is allowed under the license. It focuses on expanding the number of blocks available for end-themed builds!

This mod requires Differentiate.

Includes, but is not limited to:

stairs, slabs and walls for end stone!
a new polished end stone set!
purpur bricks!
shulker blocks and swirls, based on the shulker textures!
automatic compatibility for both Quark (midori) and Lepton (pressure plates and buttons) when loaded!

Check out the gallery for more information.

Credits:

cleverpanda714, for making the original mod

Evtema3, for making some of the original textures

8HP, for some updated textures

Rexschwert, for the Russian translation

Available Versions

Addendum 3.0.2release

MC 1.21.1neoforge

June 10, 2026

Addendum 3.0.1release

MC 1.21.1neoforge

June 8, 2026

Addendum 3.0.0release

MC 1.21.1neoforge

June 6, 2026

How to Install Addendum on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set neoforge Loader

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

Install Mod

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

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Addendum server crashes on startup – what to do?

Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 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 Addendum compatible with neoforge?

Addendum officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Addendum – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Addendum 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.