Substrate
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
Requires Sodium (or Embeddium^).
Small optimization by removing the invisible sides of the bottom/ top layer of the world. For the player, these sides are visible only when necessary. (The bottom layer of polygons in the Overworld will be deleted, and the bottom and top layers in the Nether). While the mod is themed around Bedrock, the mod makes no actual checks for block type and can provide a benefit even on floating island worlds (such as mini game servers!)
^Only on NeoForge 1.20.x, or the Special Embeddium build for 1.21.1
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.11
- 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 substrate-4.2+1.21.11-neoforge.jar — drop this file into the mods folder
- Download size: 80 KB
- Download link checked 7 Oct 2026 — working
These come from our own check of the pack file, not from the source page.