Modrinth · Minecraft modpack

Isaac's Optimized Horizons

This modpack is the most optimised way to run Distant Horizons with Iris shaders.

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

Quick answer

Which Isaac's Optimized Horizons release should I use?

Updated 1 year ago

Latest stable file Isaac's Optimized Horizons 1.0.3

Game version 1.21.1

Loader Fabric 0.16.5

Isaac's Optimized Horizons 1.0.3 is a complete pack release for 1.21.1 with Fabric 0.16.5. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 58 mods in this pack file.

Pack setup

How should I set up Isaac's Optimized Horizons for players and a server?

Use Isaac's Optimized Horizons 1.0.3 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 Isaac's Optimized Horizons 1.0.3

Dedicated server setup Match Isaac's Optimized Horizons 1.0.3

Pack loader Fabric 0.16.5

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.

Plan the server requirements Read the Minecraft installation guide

Referenced mods 58

Client only 38

Server only 1

Not labelled 19

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 Isaac's Optimized Horizons?

Isaac's Optimized Horizons 1.0.3. Change the pack release and its contents or setup may change too.

58 mods in this pack file

The selected pack release is Isaac's Optimized Horizons 1.0.3. That file is for Minecraft 1.21.1 with Fabric 0.16.5. It contains 58 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 Isaac's Optimized Horizons?

This modpack is the most optimised way to run Distant Horizons with Iris shaders. This pack contains 62 performance and/or QOL mods and 6 DH-compatible shaders. I made this pack as I was tired of poor performance and inconsistencies when running Distant Horizons myself, so I compiled a pack of well-known and very useful mods and decided to share them to the world. I wanted the best possible performance while maintaining the stunning visuals that these mods can provide, and this pack is how I achieved it.

This pack is based off of Fabulously Optimized by robotkoer, however it also contains optimisation and QOL mods not found in this pack, and of course Distant Horizons and its requirements.

WILL ADD OTHER SHADERS ONCE UPDATED TO 1.21.1 ON MODRINTH (Photon etc)

~Isaac

Project description from Modrinth.

Mods in Isaac's Optimized Horizons 1.0.3

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

animatica-0.6.1+1.21.jar SHA-1 fd805fa03e25013b9fe824bf43f7d8a90f565c84 · Modrinth version LHBm6fEV · Project link unavailable Client only

BadOptimizations-2.1.4-1.21.jar SHA-1 2338c2382537de70388a2f0f2a7b60ee0512afce · Modrinth version XYBqWKD2 · Project link unavailable Client only

BetterF3-11.0.2-Fabric-1.21.1.jar SHA-1 e3161477b47e927fc2678d8ea018c10563fa7f37 · Modrinth version 4iASq6Tm · Project link unavailable Client only

bettermounthud-1.2.4.jar SHA-1 4df822bd5bd7d2e125eb9c7fdb38bb4b6ee0476e · Modrinth version yyJushgo · Project link unavailable Client only

c2me-fabric-mc1.21.1-0.3.0+alpha.0.218.jar SHA-1 05834d7f5a16add87e79d36f02a1a9bd97acf599 · Modrinth version NQD5ggCO · Project link unavailable Side not labelled

capes-1.5.4+1.21-fabric.jar SHA-1 11655909a800fd70e2e0ca940cddc2bdbcbe2003 · Modrinth version 6SzVPVR4 · Project link unavailable Client only

citresewn-1.2.1+1.21.jar SHA-1 cbdf3fac2718a1cbb51cae9711ac3124d63d616b · Modrinth version FnarCxUt · Project link unavailable Client only

cloth-config-15.0.140-fabric.jar SHA-1 5d82342a2df53fd6df712bfdd583a811572918a4 · Modrinth version HpMb5wGb · Project link unavailable Side not labelled

cobweb-fabric-1.21-1.1.3.jar SHA-1 df64cbe9d77528f6eb8743aad8f8ddcea9437213 · Modrinth version TBejlIlG · Project link unavailable Side not labelled

continuity-3.0.0-beta.5+1.21.jar SHA-1 16d31a39e85dc10cdff4e06198a1bb26b4b82427 · Modrinth version NksUpFjf · Project link unavailable Client only

Controlify-2.0.0-beta.14+1.21-fabric.jar SHA-1 4643968fcdaee38ea921c0f4cc2cc1aebc21d058 · Modrinth version QiCZiPOr · Project link unavailable Side not labelled

CreativeFly-1.4.3-1.21-fabric.jar SHA-1 08d4dbdd43a25a979412be3cfbfc01e70bcc1941 · Modrinth version oZn9IfIG · Project link unavailable Client only

cubes-without-borders-2.1.1+1.21.jar SHA-1 bb6fbf6a7ae382daeea2979d4471c0acdeab1860 · Modrinth version fbzkv9Iu · Project link unavailable Client only

Debugify-1.21.1+1.0.jar SHA-1 6fb7d4ec9c2d2dc5b58577324b47671d3e28d7a4 · Modrinth version dO7QNiof · Project link unavailable Side not labelled

DistantHorizons-2.2.1-a-1.21.1-neo-fabric.jar SHA-1 302ad0271f1b3d9029361c94cd5cf753a60960e5 · Modrinth version pEvLEY5E · Project link unavailable Side not labelled

DistantHorizonsApi-3.0.0-sources.jar SHA-1 7fc99b82b423d63288d47544ef9f2fd2d6d09d53 · Modrinth version 1uUP7LpX · Project link unavailable Side not labelled

dynamic-fps-3.7.3+minecraft-1.21.0-fabric.jar SHA-1 257b3f7de416ca8594bdea42a26c28cbc118b841 · Modrinth version mGzNZtjf · Project link unavailable Client only

e4mc_minecraft-fabric-5.2.1.jar SHA-1 e30026f55843361ea9ec49dc5c06b27bae2c5544 · Modrinth version ul9OslWB · Project link unavailable Side not labelled

enhancedblockentities-0.10.1+1.21.jar SHA-1 36045df5f1b3e7645a5dd450fa305a8134dd7c51 · Modrinth version 8OuTJDGd · Project link unavailable Client only

entity_model_features_fabric_1.21-2.2.6.jar SHA-1 7a0d5b5388a4f55bcb4e50502893d2e6d69bae1c · Modrinth version Qql6TI9W · Project link unavailable Client only

entity_texture_features_fabric_1.21-6.2.5.jar SHA-1 a23175e7262ff0a089b13cd2cbad99e315e4cfa6 · Modrinth version qQQ5ffvS · Project link unavailable Client only

entityculling-fabric-1.7.0-mc1.21.jar SHA-1 ef4acec15876eafba8ce1618d2c2a6b3de27e58f · Modrinth version kPbJu8eF · Project link unavailable Client only

fabric-api-0.105.0+1.21.1.jar SHA-1 09b6399db5f09a79b0ac5b7ecbbba2e3189b190a · Modrinth version WTaAx4ah · Project link unavailable Side not labelled

fabric-language-kotlin-1.12.2+kotlin.2.0.20.jar SHA-1 6fa5bbd06ab731cbd522aa2591af69101d921672 · Modrinth version o0V8mlNz · Project link unavailable Side not labelled

fabricskyboxes-0.7.4+mc1.21.jar SHA-1 d7c80f23792afc6018da2477d46804114529afca · Modrinth version yhQrKNAJ · Project link unavailable Client only

fabrishot-1.14.1.jar SHA-1 c8afc690bb3508df7db793f37e1fe5407dba2f22 · Modrinth version HfdXLVRy · Project link unavailable Client only

fastquit-3.0.0+1.20.6.jar SHA-1 9c4bf4fc3292d627fe0eff85a96672a15f27338c · Modrinth version dIGKewCo · Project link unavailable Client only

ferritecore-7.0.0-fabric.jar SHA-1 95b18b0f1673bbbe328812c3052cc1a921591f0f · Modrinth version wmIZ4wP4 · Project link unavailable Side not labelled

fsb-interop-1.4.0+mc1.21-build.54.jar SHA-1 ebd6d9f048b591cee8bbf90b23246f3369161868 · Modrinth version A3n8pliV · Project link unavailable Client only

ImmediatelyFast-Fabric-1.2.21+1.21.1.jar SHA-1 46c17639a7c0bfec1f9fb4aae53f9163994a3a4e · Modrinth version ahszC7KU · Project link unavailable Client only

indium-1.0.35+mc1.21.jar SHA-1 1bf4b5db91f4e6d7a4f94fe2e96525d22df1cacb · Modrinth version Z8VpxxGh · Project link unavailable Client only

iris-fabric-1.8.0-beta.4+mc1.21.1.jar SHA-1 6481f2b12ec0d4040424b5f78d4b56faaf862ad5 · Modrinth version u9KvDA4s · Project link unavailable Client only

language-reload-1.6.1+1.21.jar SHA-1 c7988fea2a258a5afdfa193615d3b5261c1e58bb · Modrinth version fpDBBXvT · Project link unavailable Client only

lithium-fabric-mc1.21.1-0.13.1.jar SHA-1 3dde05dcd5afab3ff6ca77c08f4c82d3a064f3c6 · Modrinth version 9x0igjLz · Project link unavailable Side not labelled

main-menu-credits-1.2.0.jar SHA-1 37ad23f76336eedbd940a1f99c5e49d969fdee67 · Modrinth version eUN0SbET · Project link unavailable Client only

mixintrace-1.1.1+1.17.jar SHA-1 7fbb0130db0e427ee7180d304dfa65c46f0e3b69 · Modrinth version LGYOH4RN · Project link unavailable Side not labelled

modelfix-1.21-1.6-fabric.jar SHA-1 b8069f2a672abdea1112daa6d716a0e482cf61ea · Modrinth version FUZo6yCk · Project link unavailable Client only

modernfix-fabric-5.19.3+mc1.21.1.jar SHA-1 e2d8ee6f75d2b027ae73eafbf9f38c1eb4a35a93 · Modrinth version T1ftCUJv · Project link unavailable Side not labelled

modmenu-11.0.2.jar SHA-1 0a7c7ac1dd5360ef735ca1e782540ec45c4fc3c8 · Modrinth version 3ib3Uvvv · Project link unavailable Client only

morechathistory-1.3.1.jar SHA-1 b4337ef9dc0a6cdf31d8f3df68a6542f64f3625e · Modrinth version 3siYJiWG · Project link unavailable Client only

moreculling-fabric-1.21.1-1.0.0-beta.2.jar SHA-1 70d4901fead89d1a2cd150228f23f9f7ac60c697 · Modrinth version EvXdVs5f · Project link unavailable Client only

NoChatReports-FABRIC-1.21-v2.8.0.jar SHA-1 f1822b058132f7f221a3ac4470d54d820369c04e · Modrinth version riMhCAII · Project link unavailable Side not labelled

noisium-fabric-2.3.0+mc1.21-1.21.1.jar SHA-1 642a672cfc60ff1e1262a39d7e160b1381c5120c · Modrinth version 4sGQgiu2 · Project link unavailable Server only

optigui-2.3.0-beta.5+1.21.jar SHA-1 05ed637fc4d8a7561887753fac5929a04b8b4f5b · Modrinth version BUvJCGus · Project link unavailable Client only

paginatedadvancements-2.5.1.jar SHA-1 23a4570fb52d62135d705156079e52ddfe980b94 · Modrinth version fQnpir9a · Project link unavailable Client only

polytone-1.21-2.3.8-fabric.jar SHA-1 f12d17d422513e926e99e40b963e64598eec4474 · Modrinth version jnmgvsoH · Project link unavailable Client only

puzzle-fabric-2.0.1+1.21.jar SHA-1 bc779cab81a74f2b48e371055d0c0e4cea8201f9 · Modrinth version TMFxzCSV · Project link unavailable Client only

rrls-5.0.8+mc1.21.1-fabric.jar SHA-1 f37cbd1faceecb7808234968f6e7a100a5461fa1 · Modrinth version J4n3Uh3Y · Project link unavailable Client only

sodium-extra-fabric-0.6.0-beta.3+mc1.21.1.jar SHA-1 d5ad3bbc8a75fc2e8f3d957a85aa05f3e8b95fd0 · Modrinth version CEAENzuT · Project link unavailable Client only

sodium-fabric-0.6.0-beta.2+mc1.21.1.jar SHA-1 7a94dda82ffd1fe24cd1cacad70eb89dbe564ea6 · Modrinth version CcIWi5Av · Project link unavailable Client only

soul-fire-d-fabric-1.21-5.0.4.jar SHA-1 fc4252d040a606690e35bfd7fc984ab125a0079f · Modrinth version 3VM2gMSr · Project link unavailable Side not labelled

threadtweak-fabric-0.1.5+mc1.21.1.jar SHA-1 47fe715b4b41644817cac50a7c79ecf26f48d7e3 · Modrinth version F4sjmsi3 · Project link unavailable Side not labelled

ukulib-1.4.1+1.21.jar SHA-1 069701cb77c775ae2bfa9d59e4b9a18eafbb602d · Modrinth version WIHBQHSG · Project link unavailable Client only

ukus-armor-hud-0.5.1+mc1.21.jar SHA-1 2a0c0af49229239403058104010cac5675458658 · Modrinth version KvfhcyfG · Project link unavailable Client only

vmp-fabric-mc1.21.1-0.2.0+beta.7.168-all.jar SHA-1 cb76b60adedbcf1515c62b3614068fdc28a0e325 · Modrinth version VuFHjBNh · Project link unavailable Side not labelled

YetAnotherConfigLib-3.5.0+1.21-fabric.jar SHA-1 c58dab87a7b62d0b3812c97fa69381ae041a1439 · Modrinth version Y8Wa10Re · Project link unavailable Side not labelled

yosbr-0.1.2.jar SHA-1 f0340e9c0bc95d67f3f3e9c1cd79b61054af11f9 · Modrinth version KMOzdYko · Project link unavailable Client only

Zoomify-2.14.0+1.21.jar SHA-1 7adcde4ce0861c6b573bc86615a19ccf17bec255 · Modrinth version vg7GaKbh · Project link unavailable Client only

Pick your setup