Annuus
🟡 Updated this year⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.2% endorsement rate
- 🏆 #922 of 983 fabric mods in this game by downloads
📋 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 <br /> 13.94MB | 40.51ms <br /> 18.74MB | 72.57ms <br /> 31.66MB | 238.69ms <br /> 122.40MB | | Annuus (Deflate 9) | 29.76ms <br /> 1.17MB | 50.46ms <br /> 2.39MB | 48.6ms <br /> 4.04MB | 163.31ms <br /> 15.98MB | | Annuus (Deflate 1) | 36.09ms <br /> 2.21MB | 51.06ms <br /> 2.96MB | 57.94ms <br /> 4.99MB | 235.22ms <br /> 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 <br/> (no_compress) | 94.4KB | 612.86KB | | Replacement v1 <br/> (deflate_9) | 19.61KB | 135.9KB | | Replacement v1 <br/> (deflate_1) | 24.11KB | 169.11KB |
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 |
📊 Mod Details
- Game
- Minecraft Mods
- Author
- cao-awa
- Version
- 1.0.17
- Downloads
- 36,423
- Endorsements
- 79
- Category
- fabric
- Created
- 1/29/2025
- Updated
- 12/10/2025
- Game Versions
- 1.21.11
- Tags
- optimization
🔧 How to Install Minecraft Mods Mods
Download from Modrinth. Use Prism Launcher or drop into your mods folder.
📖 Full step-by-step install guide for Minecraft Mods →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Minecraft Mods commands, item IDs, and more.
❓ Frequently Asked Questions
Which Minecraft Mods versions does Annuus support?
The author lists 1.21.11. Other versions may work but are untested by the author.
What is the latest version of Annuus?
Version 1.0.17, published 2025-12-10 with 36,423 downloads recorded at the source.
Keep browsing — more Minecraft Mods mods await