Annuus

Annuus

Annuus is a mod for minecraft networking, improves network performance and makes the game more available for running on large server.

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31.6K Downloads
fabricneoforgeoptimization
Rent Server with this Mod

About this Mod

Annuus is a mod for minecraft networking,
improves network performance and makes the game more available for running on large server.

Supported minecraft 1.21.x with fabric loader and neoforge loader, needs fabric-api when using fabric.

When the player doesn't install annuus on the client, network packet will send normally like vanilla.

Performance

Chunk data

Deflate 1 has less CPU usage, even though that performance is not good enough here
So it be considered as a compression option

We have tested view distance as 10 (473), 12 (637), 16 (1057), 32 (3725), installed mod only fabric-api.

env/chunks 473 637 1027 3725
Vanilla 35.03ms
13.94MB
40.51ms
18.74MB
72.57ms
31.66MB
238.69ms
122.40MB
Annuus (Deflate 9) 29.76ms
1.17MB
50.46ms
2.39MB
48.6ms
4.04MB
163.31ms
15.98MB
Annuus (Deflate 1) 36.09ms
2.21MB
51.06ms
2.96MB
57.94ms
4.99MB
235.22ms
19.65MB

Block updates

The more blocks collect the more advantages in Annuus protocol, such as very huge piston towers

And chunk delta update blocks, every time collect 1229 blocks:

env/blocks 2455 7365 24550 78560
Vanilla 9.72KB 29.16KB 97.2KB 311.06KB
Annuus (Deflate 9) 6.79KB 20.39KB 67.97KB 217.53KB
Annuus (Deflate 1) 6.35KB 19.07KB 63.59KB 203.5KB

Recipes synchronize

env/recipes 1290 9587
Vanilla 105.73KB 692.2KB
Replacement v1
(no_compress)
94.4KB 612.86KB
Replacement v1
(deflate_9)
19.61KB 135.9KB
Replacement v1
(deflate_1)
24.11KB 169.11KB

Available Versions

Annuus 1.0.17release
MC 1.21.11neoforge
December 10, 2025
Annuus 1.0.17release
MC 1.21.11fabric
December 10, 2025

How to Install Annuus on Your Server

1

Order Server

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

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.11).

3

Install Mod

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

Compatibility

Mod Loaders

fabricneoforge

Minecraft Versions

1.21.11, 1.21.10, 1.21.9 (+9 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Annuus server crashes on startup – what to do?

Most common cause: wrong fabric 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 (1.21.11). You can switch loaders with one click in the panel.

Is Annuus compatible with fabric and neoforge?

Annuus officially supports fabric, neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Annuus – how to optimize performance?

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

Rent Modded Server

Install Annuus with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 only
Server-side
Required

Supported Versions

1.21.111.21.101.21.91.21.81.21.71.21.61.21.51.21.41.21.31.21.2+2 more