Included Mods
Sodium, Iris, Lithium and the rest of the mods the launcher installs from Modrinth on 1.21.11, what each one does, and how to switch any of them off.
A 1.21.11 profile comes with a tuned set of performance and quality-of-life mods. The launcher downloads each one from Modrinth the first time you play, checks it against a pinned checksum, and keeps it up to date with Sour Client releases. You do not need to install Sodium or Iris yourself.
Switching one off
- Open Profiles and pick your 1.21.11 profile.
- Under Included with Sour Client, switch off the mod you do not want.
- Save. The next launch leaves it out.
The mods (31)
| Mod | What it does | Default | Version |
|---|---|---|---|
| Sodium | A high-performance rendering engine replacement for Minecraft, which greatly improves frame rates and reduces micro-stutter. | On | mc1.21.11-0.8.14-fabric |
| Sodium Extra | The extra video settings Sodium leaves out - per-particle, sky, fog, animation and FPS-counter options. | On | mc1.21.11-0.9.4+fabric |
| Reese's Sodium Options | A cleaner, tabbed, searchable Video Settings screen for Sodium (and Sodium Extra). | On | mc1.21.11-2.2.4+fabric |
| Lithium | No-compromises game logic optimization mod, useful for both single-player games and multi-player servers. | On | mc1.21.11-0.21.4-fabric |
| FerriteCore | Memory usage optimizations | On | 8.2.0-fabric |
| ImmediatelyFast | Speed up immediate mode rendering in Minecraft | On | 1.14.3+1.21.11-fabric |
| ModernFix-mVUS | A fork of ModernFix that adds minor version update support. | On | 5.26.3-build.2 |
| Krypton | A mod to optimize the Minecraft networking stack | On | 0.2.10 |
| More Culling | A mod that changes how multiple types of culling are handled in order to improve performance | On | 1.6.2 |
| Better Block Entities | A Minecraft optimization mod for Fabric-Sodium that improves framerates by improving block entity rendering via a hybrid renderer | On | 1.3.4+mc1.21.11 |
| Ixeris | Buffered raw input and threaded event polling | On | 4.6.8+1.21.11-fabric |
| ThreatenGL | Threatens Minecraft to use modern versions of OpenGL | On | 2.0.4-release.10 |
| ScalableLux | Moves light updates off the main thread and spreads them across your CPU cores (async lighting, based on Starlight). | Off | 0.1.6+fabric.c25518a |
| Concurrent Chunk Management Engine (Fabric) | A Fabric mod designed to improve the chunk performance of Minecraft. | Off | 0.3.6.0.0 |
| Fast Noise | Vanilla Worldgen optimization mod | On | 1.0.40+1.21.11 |
| Alternate Current | An efficient and non-locational redstone dust implementation | On | mc1.21.11-1.9.0 |
| quick pack | Optimize datapack / resourcepack zip file loading times | On | fabric-1.5.1+1.21.11 |
| Debugify | Fixes Minecraft bugs found on the bug tracker | On | 1.21.11+1.2 |
| RenderScale | Change resolution without affecting the UI | On | 1.4.0-alpha.4-fabric+1.21.11 |
| BadOptimizations | Optimization mod that focuses on things other than rendering | On | 2.4.1 |
| Dynamic FPS | Reduce resource usage while Minecraft is in the background, idle, or on battery. | On | 3.11.6 |
| Iris Shaders | A modern shader pack loader for Minecraft intended to be compatible with existing OptiFine shader packs | On | 1.10.8+1.21.11-fabric |
| Mod Menu | Adds a mod menu to view the list of mods you have installed. | On | 17.0.1 |
| Async Logger | Asynchronous logging and efficient filtering - the game log is written on a background thread instead of the render thread. | On | 2.2.3+1.21.11-fabric |
| OptiPainting Reloaded | Optimized painting rendering for modern Minecraft. | On | 1.1.0+1.21.10 |
| FastQuit | Lets you return to the title screen early while your world is still saving in the background. | On | 3.1.3+mc1.21.11 |
| Language Reload | Reduces load times and adds fallbacks for languages | On | 1.7.7+1.21.11 |
| AppleSkin | Food/hunger-related HUD improvements | On | 3.0.8+mc1.21.11 |
| Shulker Box Tooltip | View the contents of shulker boxes from your inventory | On | 5.2.16+1.21.11-fabric |
| Shield Fixes | Resolves issues with shield sounds and corrects the animation glitch where the player's shield doesn't display blocking properly. | On | 2.0.4+1.21.11 |
| Status Effect Timer | Overlay a timer on the Vanilla status effect HUD icons | On | 2.0.0+1.21.6 |
Two are off by default: ScalableLux and C2ME change how lighting and chunks are processed, which helps big singleplayer worlds more than servers. Switch them on if you play a lot of singleplayer.
Libraries (7)
These do nothing on their own; other mods in the pack need them. Leave them on.
| Library | What it is | Default | Version |
|---|---|---|---|
| Fabric API | Lightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain. | On | 0.141.6+1.21.11 |
| Fabric Language Kotlin | This is a mod that enables usage of the Kotlin programming language for Fabric mods. | On | 1.14.1+kotlin.2.4.20 |
| Cloth Config API | Configuration Library for Minecraft Mods | On | 21.11.153+fabric |
| YetAnotherConfigLib (YACL) | A builder-based configuration library for Minecraft! | On | 3.8.2+1.21.11-fabric |
| Fzzy Config | Config API with automatic GUIs, powerful validation options, server-client sync, and more! | On | 0.7.7+1.21.11 |
| Text Placeholder API | Placeholder and Text manipulation library for your Minecraft mods. | On | 2.8.2+1.21.10 |
| WalksyLib | A config / utility library for my mods | On | 0.9.992+1.21.11 |
Shaders
Iris is included, so shader packs work: put them in the profile's shaderpacks folder and pick one in Video Settings, Shader Packs.
Shaders are heavy. If your frames drop, turn the shader pack off before anything else.
Adding your own
Drop any other Fabric 1.21.11 mod onto the profile's mod list. If a mod you add does the same job as one in the pack (two culling mods, two lighting engines), switch one of them off.