OCSMP Build for Minecraft 1.21.1

Name: OCSMP
Availability: InStock
Author: SJ__

Origins modpack containing a variety of content and performance mods, intended for use on the Origins Community SMP.

from SJ__ · Modrinth

On a server

views: 11 views
Updated: Updated 25.10.2026

1.21.1
Fabric
Client and server

About the OCSMP modpack

The Origins Community SMP modpack is intended for use on the OCSMP server.

The pack contains a variety of different mods, including:

Origins
Extra content mods such as Farmer's Delight and Tide
Simple Voice Chat
Performance mods such as Sodium and FerriteCore
& more!

The modpack also includes several optional resource packs.

In addition, the server's IP is pre-loaded into the server list with this modpack.

The server's discord is linked on the Modrinth page.

How to install OCSMP

With Millida Launcher

Install Millida Launcher
The launcher is free: download it at millida.net/launcher and sign in with any nickname.
Click “Install” on this page
The launcher opens and installs the modpack for Minecraft 1.21.1 on Fabric automatically.
Launch the game
A profile with it appears in the launcher: click “Play”.

Manually

Download the modpack archive
In the version list above, pick the file OCSMP 6.1.3-enhanced.mrpack (2.5 MB).
Import it into a launcher
A launcher that supports modpacks (Millida Launcher, Prism) takes the archive via “Add modpack”, then “From file”. No need to unpack it yourself.
Allocate memory
Modpacks need more memory than the plain game: set 4–6 GB in the profile settings.

On a server

Use the “To server” button
On Millida Hosting, the button at the top of the page uploads the file to your server and restarts it for you.
Invite friends: they install the same modpack
To join the server, every player needs the same modpack version.

Minecraft 1.21.1 runs on Java 21: with a different Java version the game may close right after launch.

Versions

With dependencies

Minecraft	Loader	File	Date
1.21.1	Fabric	1.21.12.5 MB	Oct 24, 2026
1.21.1	Fabric	1.21.12.7 MB	Oct 24, 2026
1.21.1	Fabric	1.21.12.5 MB	Oct 18, 2026
1.21.1	Fabric	1.21.12.7 MB	Oct 18, 2026
1.21.1	Fabric	1.21.12.5 MB	Oct 18, 2026
1.21.1	Fabric	1.21.12.7 MB	Oct 18, 2026
1.21.1	Fabric	1.21.12.5 MB	Oct 18, 2026
1.21.1	Fabric	1.21.12.7 MB	Oct 18, 2026

What it needs to run

Continuityalready included
Xaero's Minimapalready included
WorldEditalready included
Shulker Box Tooltipalready included
Polytonealready included
Fabrishotalready included
[EMF] Entity Model Featuresalready included
More Cullingalready included
ImmediatelyFastalready included
Blahaj - Replushedalready included
Do a Barrel Rollalready included
Vanilla Backportalready included
EMIffectalready included
BetterF3already included
Simple Voice Chatalready included
Easy Magicalready included
Cloth Config APIalready included
Sodiumalready included
[ETF] Entity Texture Featuresalready included
ClientIDalready included
Reese's Sodium Optionsalready included
Melodyalready included
CraftPresencealready included
Cubes Without Bordersalready included
Lootralready included
AppleSkinalready included
More Armor Trimsalready included
Resourceful Libalready included
Dependencyalready included
Fabric Language Kotlinalready included
Dependencyalready included
CICADAalready included
Celestialalready included
Konkretealready included
OptiGUIalready included
Dynamic FPSalready included
Entity Cullingalready included
Xaero's World Mapalready included
Enhanced Block Entitiesalready included
Easy Anvilsalready included
Indiumalready included
Fabric APIalready included
Animaticaalready included
Dependencyalready included
Sodium Extraalready included
Puzzles Libalready included
Model Gap Fixalready included
Debugifyalready included
Complementary Shaders - Unboundalready included
Immersive Melodiesalready included
Dependencyalready included
FancyMenualready included
Your Options Shall Be Respected (YOSBR)already included
Lithostitchedalready included
Iris Shadersalready included
Remove Reloading Screenalready included
Dependencyalready included
EMI Addon: Extra Mod Integrationsalready included
ResourcePackCachedalready included
Dependencyalready included
Tide 2already included
Trims Expandedalready included
EMIalready included
Rustic Delightalready included
Easy Shulker Boxesalready included
Lithiumalready included
Dependencyalready included
Dependencyalready included
Dependencyalready included
Platformalready included
Dependencyalready included
Better Mount HUDalready included
Photon Shadersalready included
Architectury APIalready included
Mod Menualready included
Better Statistics Screenalready included
UniLibalready included
Forge Config API Portalready included
Cape Provideralready included
CIT Resewnalready included
Paginated Advancements & Custom Framesalready included
e4mcalready included
No Chat Reportsalready included
EMI Lootalready included
Small Shipsalready included
Night Lightsalready included
Figuraalready included
Dependencyalready included
Moonlight Libalready included
Distant Horizonsalready included
Language Reloadalready included
FerriteCorealready included
Drippy Loading Screenalready included
Dependencyalready included
EMI Enchantingalready included
FastQuitalready included
LambDynamicLightsalready included
Scribblealready included
More Delight (for Farmer's Delight)already included

FAQ

Which Minecraft versions does OCSMP work on?

Only Minecraft 1.21.1: there are no files for other versions.

Is OCSMP for Forge or Fabric?

Only for Fabric: 1.21.1.

Which mods are in the OCSMP modpack?

Mods in the modpack include Continuity, Xaero's Minimap, WorldEdit, Shulker Box Tooltip, Polytone, Fabrishot, [EMF] Entity Model Features, More Culling and 80 more.

Which Java does OCSMP need?

Minecraft 1.21.1 runs on Java 21. If the game closes right after launch, the usual cause is the wrong Java version in the profile settings.

Where can I download OCSMP safely?

On this page: the file OCSMP 6.1.3-enhanced.mrpack (2.5 MB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 69518553a1b894ffb1e5c244750d728b1404e68b.