What's Essentially Optimized (Server)?

Essentially Optimized (Server), is a curated collection of the best server-side only optimization mods for Fabric. It focuses entirely on improving TPS, increasing chunk generation speed, and reducing RAM usage without changing how vanilla Minecraft works.

Clients DON'T need to use this modpack to join!
^{If you are looking for client side optimizations (FPS boost) then check out Essentially Optimized (FPS).}

Thanks to modern performance mods, this pack often outperforms other optimization solutions by stripping away everything that is unnecessary and ONLY keeping mods essential to performance!

3k x 3k Chunk Loading	Time spent	Avg. c/s
Essentially Optimized (Server)	00:04:54	122
Vanilla Server	00:09:10	65

^{Tested with Fabric 1.21.10 on a 6GB shared hosting server with Ryzen 9 5950x (4.5 vCores). Source}

100% Optimization Focused

We built this modpack with extreme simplicity in mind since we have been looking for something like this ourselves. Unlike with most other packs, you will find:

• NO unnecessary quality-of-life mods.
• NO visual enhancements.
• NO content additions or random mods.

Key Features

🚀 2x Faster Chunk Loading: Seamless gameplay with multi-threaded chunk generation and a completely rewritten lighting engine. Whether you are teleporting or flying with an Elytra, the world loads faster than ever by utilizing all available CPU cores instead of relying on a single thread.

💾 Reduced RAM Usage: Using advanced memory management and data storage, this modpack lowers the RAM required to run the server. This prevents "Out of Memory" crashes and allows you to host a smooth experience even on budget hardware.

⚡ Optimized TPS & MSPT: By rewriting core game physics, entity tracking, and mob AI logic, this modpack makes sure your server processes ticks efficiently. Resulting a stable 20 TPS and low MSPT, allowing for complex redstone contraptions and higher player counts.

🌐 Smoother Networking: Optimized network stacks and packet compression reduce the bandwidth usage between the server and players. This minimizes rubber-banding and hit-registration issues, ensuring a responsive experience for everyone.

✅ Full Vanilla Compatibility: All optimizations are strictly internal code improvements that respect vanilla mechanics. Players can join with a standard vanilla client, no extra downloads required on their end.

Huge thank you to all the individual mod creators. Without you, this modpack would not exist. Please go show some love to them. But now, stop waiting and install the modpack!

Quick Install Guide

Download the Fabric server installer.
Install the modpack files into your server's mods folder.
Start the server & invite your friends!

^{If you have a server on WiseHosting, all of this can be done a lot easier, as shown here.}

Host your next Minecraft Server with WiseHosting!

Credits & Links

Lithium by jellysquid3
FerriteCore by malte0811
ModernFix-mVUS by Coredex
Krypton by astei
C2ME by ishland
Very Many Players by shland
ServerCore by Wesley1808
Alternate Current by Space Walker
ScalableLux by shland
Get It Together, Drops! by bl4ckscor3
Clumps by jaredlll08
NoisiumForked by Coredex
spark by lucko
Chunky by pop4959

Fabric API by modmuss50
Cloth Config API by shedaniel

FAQ

Q: Will this be made for older versions as well?
A: We currently have no plans to backport it to older versions. But if the demand is high, we might do it.

Q: What mods are in the pack?
A: You can see the full, up-to-date list by checking each version's dependencies or at the bottom of the page under Credit & Links

Q: Why doesn't it have (insert a mod not related to optimization)?
A: To keep the pack as light, fast, and stable as possible, we only include optimization mods.

Q: Do I need the modpack on the client?
A: No, the pack is fully server side and does not need to be installed on the client.

Q: How can I install the modpack?
A: Here's how to install the modpack on your server.

Q: Where can I get support, report a bug, or give feedback?
A: Join our Discord Server to report any bugs or get help.

Q: My server still feels choppy?
A: We can optimize your server but we can't magically give you more than actually available. So please make sure you have allocated enough RAM to your server. I recommend using at least 4GB for a smooth experience. Anything below that, the issues are easy to come.