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Modrinth · Minecraft modpack

Core Optimized

Core Optimized is modpack designed to focus on Vanilla world exploration with Performance improvement modes and few QoL mods. It does not contain any big game-changing modes.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Core Optimized release matches 1.21.9 Fabric?

Updated 22 days ago
alpha file Core Optimized 1.6.0-alpha.3
Game version 1.21.9
Loader Fabric 0.17.3

Core Optimized 1.6.0-alpha.3 is a complete pack release for 1.21.9 with Fabric 0.17.3. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 51 mods in this pack file.

Pack setup

How should I set up Core Optimized for players and a server?

Use Core Optimized 1.6.0-alpha.3 as the pack version. Install the pack as its own launcher instance. The creator’s listing does not name a separate server file, so check the release notes before setting up a dedicated server. Do not upload the ordinary client folder blindly.

Client instance Install Core Optimized 1.6.0-alpha.3
Dedicated server setup Match Core Optimized 1.6.0-alpha.3
Pack loader Fabric 0.17.3

A pack is a matched client and server setup, not one mod with an install-side label. Keep its release, loader, manifest and overrides together.

Referenced mods 51
Client only 32
Server only 1
Not labelled 18

These numbers come from the pack file you chose. “Not labelled” means we don’t know which side it belongs on—not that it is safe everywhere. The file count is not a RAM estimate.

What are the server requirements for Core Optimized?

Core Optimized 1.6.0-alpha.3 on 1.21.9 Fabric. The pack contents and setup notes below stay tied to that release.

51 mods in this pack file

The selected pack release is Core Optimized 1.6.0-alpha.3. That file is for Minecraft 1.21.9 with Fabric 0.17.3. It contains 51 mod projects. The creator’s listing does not name a separate server file. Check their notes before using one, and do not upload an ordinary client folder or rebuild the pack mod by mod. A file count cannot tell us the right RAM, CPU or storage; size the server for the players and world you actually run.

About this project

What kind of pack is Core Optimized?

Partner

CoreOptimized is a carefully curated Minecraft modpack designed to enhance the classic Vanilla gameplay experience without straying far from its core essence. It focuses on improving world exploration, performance, and quality of life through lightweight, non-intrusive mods.

This modpack provides a perfect balance between keeping the beloved Vanilla feel and integrating subtle improvements that elevate gameplay. From smoother terrain generation and optimized rendering to immersive soundscapes and intuitive UI tweaks, every addition is thoughtfully selected to refine the experience.

Whether you're adventuring through vast biomes, building intricate creations, or simply enjoying the serene beauty of the Minecraft world, Vanilla Improved ensures it all runs seamlessly and looks better than ever. With no major game-changing mods, this pack is ideal for those who want an improved Vanilla experience without altering its fundamental charm.

Perfect for explorers, builders, and Vanilla purists who want to keep it simple, yet extraordinary!

Credits:
All credit goes to the amazing mod developers who created these incredible mods. I simply combined them into this bundle to make it easier for players to enjoy a refined Vanilla Minecraft experience.

FAQ


Q: What is CoreOptimized?
A: CoreOptimized is a modpack designed to enhance Minecraft's performance and improve the gaming experience with various QoL changes, while maintaining the vanilla feel of the game.


Q: How can I install CoreOptimized?
A: CoreOptimized is available on the Modrinth platform and can be installed using the following launchers:

For detailed documentation click here.


Q: What does the modpack include?
A: The modpack includes:

  • Resource Packs: Enhance the visual quality of the game.
  • Shaderpacks: Improve graphics and lighting effects.
  • Performance Mods: Optimize the game for smoother performance.
  • QoL Mods: Add minor improvements to gameplay for a better experience.

These additions ensure a high-performance experience without losing the vanilla feel of Minecraft.


Q: Where can I find more information or support?
A: You can find more information and support at the following:


Q: What is the license for CoreOptimized?
A: CoreOptimized is licensed under the MIT License, providing freedom for the community to use, modify, and distribute the modpack.


Project description from Modrinth.

Mods in Core Optimized 1.6.0-alpha.3

Open any mod on Modpacks.ch to check its files and dependencies.

architectury-18.0.5-fabric.jar SHA-1 4c6797e93bb13d4e9ad60af554b69512e96a2014 · Modrinth version qkIZZKUH · Project link unavailable Side not labelled
audioplayer-fabric-2.0.1+1.21.9.jar SHA-1 bc2dc758ca9989e9ab958b323825fd870fcabb47 · Modrinth version gHqPNYEH · Project link unavailable Server only
better-clouds-1.11.1-alpha+1.21.9-fabric.rev.e63efe2.jar SHA-1 2f116ee039159f3388887c899d9195d5105a5065 · Modrinth version P2WbcGkt · Project link unavailable Client only
BetterF3-16.0.3-Fabric-1.21.10.jar SHA-1 5baeed05a286409c8c49bb091f26d7f70c9d7503 · Modrinth version nIoTbJd0 · Project link unavailable Client only
BetterGrassify-1.8.2+fabric.1.21.10.jar SHA-1 922d2c76a063f18c6d24fee156da2b883afdf4be · Modrinth version 2C7y66BK · Project link unavailable Client only
betterstats-4.0.0+fabric-1.21.9.jar SHA-1 c122d320d8163a30c00ae91201a4b69664e46679 · Modrinth version Er58Q7Wn · Project link unavailable Side not labelled
boatiview-fabric-0.0.7-1.21.10.jar SHA-1 ec5cba9425fa52aa3837cd9edc1ad7577eab466e · Modrinth version wRxhoGia · Project link unavailable Client only
capes-1.5.9+1.21.9-fabric.jar SHA-1 049ded33ebf0453fd18ce91debe741d231afca3f · Modrinth version HG7qn2PL · Project link unavailable Client only
chat_heads-1.1.2-fabric-1.21.9.jar SHA-1 daaf0227fac9caf4c565b8b5b1b41a7f8cebafd4 · Modrinth version VAYOVjEl · Project link unavailable Client only
chatanimation-1.0.7.jar SHA-1 26fc1521983d1a85296a6e778ec6a6c094b0d763 · Modrinth version UFrXjD4k · Project link unavailable Client only
cloth-config-20.0.149-fabric.jar SHA-1 c86e380bdac24e4ecdd148558e9d4ddf32c86059 · Modrinth version qMxkrrmq · Project link unavailable Side not labelled
cwb-fabric-3.0.0+mc1.21.5.jar SHA-1 b663eb9a8238be3cd71173e39b6f9d01d0948c1d · Modrinth version wXhtL4fb · Project link unavailable Client only
dynamic-fps-3.10.1+minecraft-1.21.9-fabric.jar SHA-1 2f3120c0b74a1c273646051f5e32c20b7b6548eb · Modrinth version EBgFtvQL · Project link unavailable Client only
entity_model_features_1.21.9-fabric-3.0.5.jar SHA-1 bc4b0d0e40a72322fb4ceeebb95e4f037d3aad9a · Modrinth version pvyci2Ch · Project link unavailable Client only
entity_texture_features-7.0.4-1.21.9-fabric.jar SHA-1 07c402a7f6db6d6cfcddec3d765319813b8544ca · Modrinth version dP1ZqaGp · Project link unavailable Client only
entityculling-fabric-1.9.3-mc1.21.10.jar SHA-1 db022121a0326fe346faa7ff2412a61758b91c0a · Modrinth version YkqoVa13 · Project link unavailable Client only
fabric-api-0.134.0+1.21.9.jar SHA-1 1f5ba40f85c96c4f8b661097d3e3f8906cc55c4f · Modrinth version iHrvVvaM · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.7+kotlin.2.2.21.jar SHA-1 ab71e8daf9a2d529204b5c28b3801713d22f3d46 · Modrinth version LcgnDDmT · Project link unavailable Side not labelled
ferritecore-8.0.2-fabric.jar SHA-1 5ea50634ed19a5e10acb46258bab0c1ee20f64ca · Modrinth version MGoveONm · Project link unavailable Side not labelled
held-item-info-1.9.0.jar SHA-1 532d18bbe3742e4504eab97d87fc90f056922176 · Modrinth version W9UChZ9E · Project link unavailable Client only
ImmediatelyFast-Fabric-1.13.2+1.21.10.jar SHA-1 e3f487736064ccd6c94e110cbaa057cf72eea2aa · Modrinth version mmM8JfKR · Project link unavailable Client only
iris-fabric-1.9.6+mc1.21.9.jar SHA-1 365d6619b1526abf8475ff1fc1a537b033d9fafa · Modrinth version r1MZ1Bpv · Project link unavailable Client only
Jade-1.21.9-Fabric-20.1.0.jar SHA-1 d1ae69baa96742259036573fd0df35a58f7fd088 · Modrinth version nCbsPtPw · Project link unavailable Side not labelled
lambdynamiclights-4.8.6+1.21.10.jar SHA-1 f3876352a6299b5ec05dd1684fc420606eeda8e6 · Modrinth version BRdrLWGs · Project link unavailable Client only
libjf-3.19.3.jar SHA-1 743101cfdea16e18abffa80d0cf7b17abecf228f · Modrinth version ju7tZaHJ · Project link unavailable Side not labelled
lithium-fabric-0.19.2+mc1.21.9.jar SHA-1 0f9b70bd70c14f293b76e90917dd7de78c47c073 · Modrinth version L1sSIxFm · Project link unavailable Side not labelled
main-menu-credits-1.2.0.jar SHA-1 37ad23f76336eedbd940a1f99c5e49d969fdee67 · Modrinth version eUN0SbET · Project link unavailable Client only
modmenu-16.0.0-rc.1.jar SHA-1 c927187d11cb6db2d3daad2a24899f1a70a1618f · Modrinth version e0mxOOIE · Project link unavailable Client only
morechathistory-1.3.1.jar SHA-1 b4337ef9dc0a6cdf31d8f3df68a6542f64f3625e · Modrinth version 3siYJiWG · Project link unavailable Client only
moreculling-fabric-1.21.9-1.5.0-beta.2.jar SHA-1 3ab31aec861c6bcade87f7e9317d1ca2ac7a19f3 · Modrinth version nASRyMbu · Project link unavailable Client only
MouseTweaks-fabric-mc1.21.9-2.29.jar SHA-1 e6816dd7a2f61deca930c6787a04b74afb91249f · Modrinth version ULOi34Uh · Project link unavailable Client only
NoChatReports-FABRIC-1.21.10-v2.16.0.jar SHA-1 40d66a2d31c55d1f53bdbacb91802c789c62fc11 · Modrinth version 78RjC1gi · Project link unavailable Side not labelled
notenoughanimations-fabric-1.10.6-mc1.21.10.jar SHA-1 72c2f83a05ab40c055f2d11d61d4e36a3f8d5e1f · Modrinth version rPkK5la7 · Project link unavailable Client only
optigui-2.3.0-beta.8+1.21.9.jar SHA-1 030107a23b95f91a469a4b15af6f0cfbe2fdcd2a · Modrinth version novKhTZ1 · Project link unavailable Client only
paginatedadvancements-2.8.0+1.21.9.jar SHA-1 9ec5cbf8290c4da053b403b621d0da5764b9567c · Modrinth version WzL9PGHD · Project link unavailable Client only
placeholder-api-2.8.1+1.21.10.jar SHA-1 4950367323147265b272ad2156bf1a343db3f64c · Modrinth version T5pDJV1K · Project link unavailable Side not labelled
puzzle-fabric-2.1.2+1.21.9.jar SHA-1 7274705740c39c28d9ffd171b92110a05f85ecb9 · Modrinth version 9EpmlvYD · Project link unavailable Client only
reeses-sodium-options-fabric-1.8.5+mc1.21.9.jar SHA-1 d429e9f7d43f70736f4df6faee7c50492a31352f · Modrinth version Wd3HgdUs · Project link unavailable Client only
respackopts-4.13.9.jar SHA-1 2dd4c2900b003ce33c9c07985be7c950a0d1e5b8 · Modrinth version KJpUWZJ7 · Project link unavailable Side not labelled
shulkerboxtooltip-fabric-5.2.11+1.21.9.jar SHA-1 7e67065f03e54ea574b6e6dd41c8bc9927a2a35b · Modrinth version 4DMOp59l · Project link unavailable Side not labelled
sodium-extra-fabric-0.7.0+mc1.21.9.jar SHA-1 4c90cdaeb5839bc162d7e0e4c249dca1291ca711 · Modrinth version JK9FUEto · Project link unavailable Client only
sodium-fabric-0.7.2+mc1.21.10.jar SHA-1 3ade491ca5fc3074d332ff8eba2dbf0e294cc04e · Modrinth version VTidoe6U · Project link unavailable Client only
sound-physics-remastered-fabric-1.21.9-1.5.1.jar SHA-1 9c98f3f51c93a8f6b848bc81568ec9b2bafae536 · Modrinth version dkg8dQOa · Project link unavailable Side not labelled
spark-1.10.152-fabric.jar SHA-1 85ae54dace1d468d8cbcfac88bb7c31ff7852530 · Modrinth version eqIoLvsF · Project link unavailable Side not labelled
tcdcommons-4.0.1+fabric-1.21.9.jar SHA-1 5b389579a2c3f832c9840977a9ee1d843a25c522 · Modrinth version svunM3ft · Project link unavailable Side not labelled
visuality-0.7.11+1.21.9.jar SHA-1 0829e54722ffa7fa6d91ecca22907755c9d30829 · Modrinth version Dn8vJ9j6 · Project link unavailable Client only
voicechat-fabric-1.21.9-2.6.4.jar SHA-1 87e78957bfc1ed4926b68abeefbd8f224dbcbe6e · Modrinth version pTfXZIdn · Project link unavailable Side not labelled
worldplaytime-1.2.4-1.21.10-FABRIC.jar SHA-1 d400cfaab6b5649f3f317ee565abc373ac797b70 · Modrinth version F358EFtc · Project link unavailable Client only
yet_another_config_lib_v3-3.8.0+1.21.9-fabric.jar SHA-1 9e25b9aa5118dc77d6ec1192df0c1bb237f7e9d1 · Modrinth version UZmV6xf4 · Project link unavailable Side not labelled
yosbr-0.1.2.jar SHA-1 f0340e9c0bc95d67f3f3e9c1cd79b61054af11f9 · Modrinth version KMOzdYko · Project link unavailable Client only
Zoomify-2.14.6+1.21.9.jar SHA-1 6a07d3b45d02e86ed5184dfd1309803f777a1a5e · Modrinth version jF5geVmV · Project link unavailable Client only

Pick your setup

Core Optimized by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

16 available setups

Showing the newest 12 of 16 game versions. Older files are in the list below.

Made local changes? Try them in a copied instance before touching a world you care about.

Recent files

Core Optimized versions and loaders

3 of 100 releases match
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Looking for an older file? The official Modrinth project page is in Resources.