This library adds a bunch of GUI widgets, viewable through the no-texture button in the main menu, an attempt at a modular settings and config system, a modular selection tool system based on the biome tool and a bunch of code that implements a version of the Rainworld atlas system into minecraft. There's also a shader rendering system with all rainworld shaders and framebuffer capture support, as well as an iris compatible system for rendering quads in-world using core shaders. A nine slice tiling system for the libraries widgets as well as a custom server MOTD renderer with advanced text manipulation is also present. Doesn't really change much of the game itself and (at least for now, till the project releases) only intended for devs of the project to use.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as librainworldmc-2.0.1.jar — drop this file into the mods folder
- Download size: 21.4 MB
- Download link checked 5 Oct 2026 — working
These come from our own check of the pack file, not from the source page.