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Modrinth · Minecraft modpack

Mainstay SMP Modpack

Modpack for those who want to use all server features

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

Quick answer

Which Mainstay SMP Modpack release should I use?

Updated 4 months ago
Latest stable file Mainstay Minimal edition 1.21.11
Game version 1.21.11
Loader Fabric 0.18.4

Mainstay Minimal edition 1.21.11 is a complete pack release for 1.21.11 with Fabric 0.18.4. Install it as its own launcher instance. If the creator publishes a separate server file, make sure it names this exact pack release. 68 mods in this pack file.

Pack setup

How should I set up Mainstay SMP Modpack for players and a server?

Use Mainstay Minimal edition 1.21.11 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 Mainstay Minimal edition 1.21.11
Dedicated server setup Match Mainstay Minimal edition 1.21.11
Pack loader Fabric 0.18.4

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 68
Client only 35
Server only 1
Not labelled 32

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 Mainstay SMP Modpack?

Mainstay Minimal edition 1.21.11. Change the pack release and its contents or setup may change too.

68 mods in this pack file

The selected pack release is Mainstay Minimal edition 1.21.11. That file is for Minecraft 1.21.11 with Fabric 0.18.4. It contains 68 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 Mainstay SMP Modpack?

Mainstay SMP Modpack

Minimal & Full Edition - Client Utility Packs

The Mainstay SMP Modpack is a client-side modpack family designed to unlock the full potential of server-side features, while improving performance, visuals, and quality of life — without breaking the vanilla feel.

These modpacks are intended as the recommended client setup for Mainstay SMP, but they can also be used as a clean base for your own custom modpack.


🧩 Core Philosophy

  • Client-side only
  • Vanilla-friendly gameplay
  • Full compatibility with server-side mods
  • Performance first, visuals second, utility third
  • No unnecessary or intrusive mechanics

The goal is simple:
see more, know more, play smoother — without changing how Minecraft works.


⚡ Performance & Stability

Both editions focus on stable, efficient gameplay:

  • Sodium ecosystem (Sodium, Sodium Extra, Reeses Options)
  • Lithium, FerriteCore, ImmediatelyFast
  • Entity Culling, More Culling
  • Dynamic FPS for background optimization

These mods ensure high FPS, reduced stutter, and low memory usage even on large servers.


🎨 Visual Improvements (Vanilla Style)

Visual upgrades are carefully selected to enhance immersion without altering Minecraft’s original look:

  • Better Clouds, Continuity
  • Entity Texture & Model Features
  • Skin Layers 3D, Capes, Wavey Capes
  • Iris (shader support, optional)
  • Ambient-friendly particle and lighting tweaks

🗺️ Exploration & Navigation

Designed to fully support server-side features:

  • Xaero’s Minimap & World Map (+ XaeroPlus)
  • Waypoints and zoom tools
  • Voxy for extended world rendering (server-friendly)

🔊 Audio & Social Interaction

Immersion and communication are key on SMP servers:

  • Simple Voice Chat + Voice Messages
  • Presence Footsteps (Full Edition)
  • Drip Sounds (Full Edition)
  • Clear positional and environmental audio

🧱 Utility & Quality of Life

Small changes that make a big difference:

  • AppleSkin, Jade / WTHIT
  • Quick Shulker, Peek, Shulker tooltips
  • Better Stats, Status indicators
  • Inventory, hotbar, and UI enhancements
  • Litematica & Syncmatica (for supported servers)

Many mods unlock extra functionality when the server provides matching server-side mods.


🔀 Modular by Design

  • Some mods are disabled by default
  • Alternatives are included where relevant
  • Users can switch mods depending on:
    • Server rules
    • Performance needs
    • Personal preferences

This makes the modpack flexible and future-proof.


📦 Editions Explained

🔹 Minimal Edition

  • Lightweight and clean
  • Performance, visuals, and essential QoL only
  • Ideal for:
    • Low-end PCs
    • Players who want a near-vanilla experience
    • A base for custom modpacks

🔸 Full Edition

  • Everything from Minimal, plus:
    • Advanced building & technical tools
    • Extended audio immersion
    • More visual feedback
  • Ideal for:
    • Power users
    • Builders and technical players
    • Players who want maximum client-side control

✅ Server Compatibility

  • Recommended for Mainstay SMP
  • Client-side only
  • Safe to join vanilla or modded servers
  • Many features scale automatically based on server support

🎯 Recommended Use

Mainstay SMP Modpack (Minimal or Full Edition)
is the recommended choice if you want a stable, performant, and future-proof client —
or a solid foundation to build your own modpack.


Balanced. Clean. Expandable.
Mainstay SMP Modpack keeps Minecraft vanilla — just better.

Project description from Modrinth.

Mods in Mainstay Minimal edition 1.21.11

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

appleskin-fabric-mc1.21.11-3.0.8.jar SHA-1 441fdbf4e9c34fb61517ceb8e15618950dc4d314 · Modrinth version 59ti1rvg · Project link unavailable Side not labelled
architectury-19.0.1-fabric.jar SHA-1 2d40563f7e36f7a03f094031aeaacb175117928e · Modrinth version uNdfrcQ8 · Project link unavailable Side not labelled
armored-elytra-1.12.0.jar SHA-1 494f4e86cefb41c13679dcb2a752dbf60dfd4213 · Modrinth version mKCSekSL · Project link unavailable Side not labelled
ArmorPoser-fabric-1.21.11-13.3.0.jar SHA-1 0c43ed395f67592efbbf6f43ad6a22b5093db198 · Modrinth version dMPdoQwm · Project link unavailable Side not labelled
better-clouds-1.11.3-alpha+1.21.11-fabric.rev.0daa830.jar SHA-1 3e14c71a7b1057a6748e84517d6ea94ad349df15 · Modrinth version BXq5hzZ4 · Project link unavailable Client only
bettermounthud-1.2.6.jar SHA-1 e32f65110c66a0862617dd137531d20a0697f9a9 · Modrinth version rXZxHSEZ · Project link unavailable Client only
betterstats-5.1.0+fabric-1.21.11.jar SHA-1 fd86b5ee833a53ecdbdef19783761b552d29616c · Modrinth version 99mBkJp1 · Project link unavailable Side not labelled
capes-1.5.10+1.21.11-fabric.jar SHA-1 8fcdc9940621070ebfb2cb387beae142fa8b42d4 · Modrinth version GAQAG80Q · Project link unavailable Client only
cloth-config-21.11.153-fabric.jar SHA-1 4c224606a963bce223db5b27edb4959ecf40d4ee · Modrinth version xuX40TN5 · Project link unavailable Side not labelled
collective-1.21.11-8.13.jar SHA-1 3489d194119cede1725f5853027f7c35639d8ddc · Modrinth version T8rv7kwo · Project link unavailable Side not labelled
ConfigManager-fabric-1.21.x-1.1.1.jar SHA-1 9ea08cbfeca54a94afb92edf8b1b95396fb48129 · Modrinth version 1gNhkJ1O · Project link unavailable Server only
continuity-3.0.1-beta.1+1.21.11.jar SHA-1 51d34c3f2035db0c7fca321b2d94f01b5167707c · Modrinth version mX1iknM1 · Project link unavailable Client only
Controlling-fabric-1.21.11-29.0.1.jar SHA-1 afbbbb9248d9afe6224886c62ee1b35732f056f3 · Modrinth version A6W4m3vi · Project link unavailable Client only
draggable_lists-mc1.21.6-1.0.15-build.63.jar.disabled SHA-1 870407c7976a739f1c9cc527f683636708a792dd · Modrinth version XCl53IP8 · Project link unavailable Client only
dynamic-fps-3.11.4+minecraft-1.21.11-fabric.jar SHA-1 966c7f4018ef34f469bbf54d7e6b64b686a727ab · Modrinth version PUe5Asxs · Project link unavailable Client only
e4mc-fabric-6.1.0.jar SHA-1 005880b9620a609422ba5ec6d5048a4e5fead820 · Modrinth version 9QMfnrh4 · Project link unavailable Side not labelled
elytratrims-fabric-4.6.2+1.21.11.jar SHA-1 57503f3b3435fc5c880cb3c786d51c16b677742f · Modrinth version Nzd1iQCn · Project link unavailable Side not labelled
entity_model_features_1.21.11-fabric-3.0.17.jar SHA-1 3a2b5fcb1223f275aaeb7df9de68407833a252c5 · Modrinth version bXWByT4I · Project link unavailable Client only
entity_texture_features_1.21.11-fabric-7.0.13.jar SHA-1 81ac129e88c80e6ee95115fe89fabf06db338600 · Modrinth version FEm4thcA · Project link unavailable Client only
entityculling-fabric-1.10.0-mc1.21.11.jar SHA-1 1d0370bf2f6fc68d7d5c448ae391ae8248a5e817 · Modrinth version SK12FGQf · Project link unavailable Client only
fabric-api-0.141.3+1.21.11.jar SHA-1 50de67eb221f0b38216da8668b09ca311327040e · Modrinth version i5tSkVBH · Project link unavailable Side not labelled
fabric-language-kotlin-1.13.10+kotlin.2.3.20.jar SHA-1 9873294abf498f509453d37b0a5ba019f4570ffb · Modrinth version 21TRTKmh · Project link unavailable Side not labelled
Female-Gender-Mod-fabric-5.0.0-Beta.3+1.21.11.jar SHA-1 ed5dd8a7ee049c7ef06df0c3305486dcf67bfaa7 · Modrinth version W7WJBV1r · Project link unavailable Side not labelled
ferritecore-8.2.0-fabric.jar SHA-1 c2e2f5e008f5bc9f401dfad8ca94909917006b65 · Modrinth version Ii0gP3D8 · Project link unavailable Side not labelled
ForgeConfigAPIPort-v21.11.1-mc1.21.11-Fabric.jar SHA-1 61aa1b5fafd75afc44552d0213cac39bc938bc2d · Modrinth version uXrWPsCu · Project link unavailable Side not labelled
fsit-2.9.1+mc1.21.11.jar SHA-1 37676365842d63ba54a0659ab61bfdfa1bb0e5d8 · Modrinth version 4j92DeKp · Project link unavailable Side not labelled
fzzy_config-0.7.6+1.21.11.jar SHA-1 9b064c8bd1d6414549f6a1adcadf678ffa0c96c8 · Modrinth version nSB6xGOS · Project link unavailable Side not labelled
ImmediatelyFast-Fabric-1.14.2+1.21.11.jar SHA-1 4f17c6b7388f0afc5d24075dc2a294963f78c712 · Modrinth version QwkfUKSj · Project link unavailable Client only
iris-fabric-1.10.7+mc1.21.11.jar SHA-1 aae8567bd9ea397d50aff1d0b680a82ffe67040c · Modrinth version fDpuVzVr · Project link unavailable Client only
JEB-1.0.14-1.21.11.jar SHA-1 dc344b785aad40ea0ed532cb23fabd4d77875b7a · Modrinth version 3x1yqzQv · Project link unavailable Side not labelled
litematica-fabric-1.21.11-0.26.3.jar SHA-1 321ab263a3638d32f07c07a036f80c5cb2f5d130 · Modrinth version ZF7nARQU · Project link unavailable Client only
lithium-fabric-0.21.4+mc1.21.11.jar SHA-1 203bdcb26e97b3217b045e1182651a7d7b6462ec · Modrinth version Ow7wA0kG · Project link unavailable Side not labelled
malilib-fabric-1.21.11-0.27.8.jar SHA-1 530f47a9f2e4a3a37ad0f6cc1f730b363a3408c3 · Modrinth version APEEwSfs · Project link unavailable Client only
modmenu-17.0.0.jar SHA-1 544a8b340ac3918d85bcc7d02eaff5372814354b · Modrinth version Tyk71iSw · Project link unavailable Client only
moreculling-fabric-1.21.11-1.6.2.jar SHA-1 11a929de62650cc536244d4c2ba889fa84c1c0f2 · Modrinth version wOzykoLV · Project link unavailable Client only
MyTotemDoll-2.3.3+1.21.11.jar SHA-1 32739286bfb01f42253516670c7afd1e6ffb7bf6 · Modrinth version VX3p0HFg · Project link unavailable Client only
NoCC-1.1.0.jar SHA-1 7f13d1876362ef1255265ad20219eed04fe1eede · Modrinth version A4qd4OeA · Project link unavailable Side not labelled
NoChatReports-FABRIC-1.21.11-v2.18.0.jar SHA-1 4e519507bdd81ce2520da33f497a5f12469f5b10 · Modrinth version rhykGstm · Project link unavailable Side not labelled
particle_core-0.3.2+1.21.11.jar SHA-1 9d5b466bd0eabcf49564c760b9e88d781cbe0feb · Modrinth version kIlv5noY · Project link unavailable Client only
pas-0.9.2-HF3-FBR-1.21.11.jar SHA-1 68eef90f5df75bb1df33f4ca82852ff8777c28b4 · Modrinth version Bpv0ZVOK · Project link unavailable Client only
peek-fabric-1.21.11-1.4.9.jar SHA-1 090fc3caaf9cc3c7124c3a68c157fc566e5db5b0 · Modrinth version dWLOrrLE · Project link unavailable Side not labelled
placeholder-api-2.8.2+1.21.10.jar SHA-1 bbdc920ecff993148cd6e81a208536132245ce40 · Modrinth version qxjzQ9xY · Project link unavailable Side not labelled
rail-placement-fix-1.1.0.jar SHA-1 16c2f684f1d696e03ee8ac9ad828d66031ff2950 · Modrinth version UVpyM92U · Project link unavailable Side not labelled
reeses-sodium-options-fabric-2.0.3+mc1.21.11.jar SHA-1 fb452b122fd72e8540d32fbe3df01cc34a45ce41 · Modrinth version yIgAFMna · Project link unavailable Client only
resourcepackchecker-fabric-1.21.11-1.2.2.jar SHA-1 1a839c0b47a7feb9e61c336f6dc1fbbc1f9432a1 · Modrinth version GNRQpK2e · Project link unavailable Client only
rrlsFabric-5.1.15+mc.1.21.11.jar SHA-1 7101fc7a030925eb22781320476515f408bbe5f4 · Modrinth version TCSbq6jC · Project link unavailable Client only
schematicpreview-0.0.16+1.21.11.jar SHA-1 0b35f6349709c3d4517633e8a1e38b7aca146df3 · Modrinth version drhz3vaw · Project link unavailable Client only
Searchables-fabric-1.21.11-1.0.4.jar SHA-1 32d0edf6f65aa9d7b33312a14cd5125aad189850 · Modrinth version 8t7XWQgt · Project link unavailable Client only
shulkerboxtooltip-fabric-5.2.16+1.21.11.jar SHA-1 3f889de77a0aec69ffcfd28bf6fb2c077443788a · Modrinth version rZovgkWT · Project link unavailable Side not labelled
SignFaster (v1.0.3) - 1.21.11.jar.disabled SHA-1 8ce7dbb5ab89ac1d2a621742cea77c04b12c56d7 · Modrinth version 5dipzp3s · Project link unavailable Client only
skinlayers3d-fabric-1.11.1-mc1.21.11.jar SHA-1 a95c49c23db05d98d88e6a225894ca93e4e86b3c · Modrinth version ntxaPFv3 · Project link unavailable Client only
skinshuffle-2.10.2+1.21.11-fabric.jar SHA-1 42e8fdb6665a2a1d9b763d4d53e3c86d6c332587 · Modrinth version wG0z8FCI · Project link unavailable Side not labelled
sodium-extra-fabric-0.8.3+mc1.21.11.jar SHA-1 e8fd1eae0d589393189f64062ca1e46fc03f4ced · Modrinth version yqY1efrC · Project link unavailable Client only
sodium-fabric-0.8.7+mc1.21.11.jar SHA-1 e8865210ba9a926fc206ab9e73f9d4988a81ff69 · Modrinth version UddlN6L4 · Project link unavailable Client only
sodiumdynamiclights-fabric-1.0.10-1.21.5.jar.disabled SHA-1 5f16e822b5b32569dc71721e76f1bbf110c3e02e · Modrinth version IqgZM27b · Project link unavailable Client only
sodiumextras-fabric-1.0.8-1.21.5.jar.disabled SHA-1 12a414e66a4bb389d7c0b07bb786f18717c6e407 · Modrinth version EkG7CUlT · Project link unavailable Client only
sodiumoptionsapi-fabric-1.0.11-1.21.5.jar.disabled SHA-1 b739d04891d216831b8f4daf9e6c5b8aa584abea · Modrinth version jF76bc57 · Project link unavailable Client only
sodiumoptionsmodcompat-fabric-1.0.0-1.21.4.jar.disabled SHA-1 9c5ab3b6ba0e096567b60b0c5c74b8e570205da9 · Modrinth version C8El2MOS · Project link unavailable Client only
stendhal-1.4.5-1.21.11.jar SHA-1 3f9f0138d0e5dd4c0ba038fbc0ad6283dee461d4 · Modrinth version 6d1Ndpk3 · Project link unavailable Client only
syncmatica-fabric-1.21.11-0.3.18.jar SHA-1 55156b76d51e590f758673a1949a9d5c83cd5491 · Modrinth version q8q5Xv6K · Project link unavailable Side not labelled
takeitout-1.1.12-1.21.11.jar SHA-1 f4c26747c2788d84687bc1c74089fe92cbd6f58e · Modrinth version Z8hfmkOU · Project link unavailable Side not labelled
tcdcommons-5.1.0+fabric-1.21.11.jar SHA-1 c8acc1e0b48af47a98a13602719574e9793fb495 · Modrinth version X850L9UC · Project link unavailable Side not labelled
txnilib-fabric-1.0.24-1.21.5.jar SHA-1 96c3381a3755b1ce5c14ad171fe37bce31334a69 · Modrinth version fnEiEwOl · Project link unavailable Side not labelled
voicechat-fabric-1.21.11-2.6.15.jar SHA-1 094377c02b2b14b14a62086898f03bd57de9354c · Modrinth version Rbi7ZjtI · Project link unavailable Side not labelled
voicemessages-fabric-1.0.12-1.21.11.jar SHA-1 2379fe87831755af1ebafb4ad4f43d4c70862cad · Modrinth version F8GEgaqb · Project link unavailable Side not labelled
voxy-0.2.13-alpha.jar SHA-1 ee8b260ef01a02f699795e31bfa1d398473f106f · Modrinth version k5PZxsfL · Project link unavailable Client only
yet_another_config_lib_v3-3.8.2+1.21.11-fabric.jar SHA-1 f99cda70903f16dd6927a276150b2762b4d5ab66 · Modrinth version pHWDw3Vc · Project link unavailable Side not labelled
zoomify-2.15.2+1.21.11.jar SHA-1 e1f738a9026e9f087d96861935f994b010b8131a · Modrinth version gI5KZI8V · Project link unavailable Client only

Pick your setup

Mainstay SMP Modpack by Minecraft version and loader

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

6 available setups

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

Recent files

Mainstay SMP Modpack versions and loaders

42 of 42 releases match

Looking for an older file? The official Modrinth project page is in Resources.