Screenshot 1 of 1. MinecraftHub-generated editorial cover for Redstone Survival Optimization, a voxel diorama around the lime MinecraftHub block
What Redstone Survival Optimization works with.
| Platform | Java Edition |
|---|---|
| Loaders | Fabric |
| Minecraft versions | 1.19.4, 1.20.6, 1.21.11, 26.1.2, 26.2, 26.3 |
| Environment | Client, Server |
Redstone Survival Optimization, shortened to RSO, is a Fabric modpack for Minecraft Java aimed at redstone and redstone power-generation players. The creator, moonboss666, pitches it as light, fast and small. It works on a single client, on a server, or on both.
Loaders and versions
- Fabric: Minecraft 1.19.4 to 26.3.
What's included
The pack gathers the mods and resource packs that most redstone players reach for. It also adds mods for playing with friends and voice chat mods, so a small group can build and talk in the same world. The creator does not itemise every mod on the page, so check the pack's file list in your launcher before relying on one.
Optimisation is the point of the pack. It is tagged lightweight, multiplayer and optimization on Modrinth, and it has passed 1.2 million downloads, which makes it one of the more widely used redstone-focused packs.
How to install RSO
- 1.Open the Modrinth App, or Prism Launcher or another launcher that reads .mrpack files.
- 2.Import the pack from its Modrinth page, then pick the release that matches the Minecraft you want to play.
- 3.Let the launcher fetch the listed mods and the Fabric loader, then start the profile.
New to modpack imports? Our guide to installing a modpack from CurseForge or Modrinth covers the steps in more detail.
Shaders the creator uses
The creator's own page lists the shaders he plays with, including BSL Shaders, Rethinking Voxels and MakeUp - Ultra Fast. Complementary Reimagined, Complementary Unbound, AstralEX and Sildur's Shaders are on the same list. The page names them as his own picks and does not say they ship inside the pack.
Questions about Redstone Survival Optimization.
3 questions
How do I install the RSO modpack?
Import it through the Modrinth App, or through Prism Launcher or another launcher that reads .mrpack files. The launcher downloads the listed mods and the matching loader for you. Choose the release for the Minecraft you want, then launch the new profile.
Do I need to install Fabric separately for RSO?
No. Importing a Modrinth modpack through a supported launcher fetches the loader along with the mods. RSO runs on Fabric only, so there is no Forge or NeoForge option to pick.
Does RSO work for multiplayer with friends?
Yes. The creator includes mods for playing with friends and voice chat mods, and Modrinth tags the pack as multiplayer. It can run on the client, on a server, or on both.
