CurseForge · Minecraft mod
Sodium Add-on: Substrate
Optimization add-on for Sodium for the bottom and/or top layer(s) of the world
Quick answer
Which Sodium Add-on: Substrate release should I use?
Sodium Add-on: Substrate [NeoForge 1.21.11] Substrate 4.2 targets 1.21.11 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Sodium Add-on: Substrate required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Sodium Add-on: Substrate [NeoForge 1.21.11] Substrate 4.2 need?
[NeoForge 1.21.11] Substrate 4.2. Change the file and its required mods may change too.
Install Sodium first. We found matching files for this game-version and loader setup.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Sodium Add-on: Substrate without breaking your instance.
Built for Sodium Add-on: Substrate [NeoForge 1.21.11] Substrate 4.2. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use [NeoForge 1.21.11] Substrate 4.2. It targets 1.21.11 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Sodium first. We found matching files for this game-version and loader setup.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside [NeoForge 1.21.11] Substrate 4.2. It opens that exact file at the source.
About this project
What does Sodium Add-on: Substrate add?
This mod is a fork of Bedrodium by kirillirik
Requires Sodium.
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 provides a benefit even on floating island worlds (such as mini game servers!)
Project description from CurseForge.
Pick your setup
Sodium Add-on: Substrate by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.11
3 loader builds1.21.10
3 loader builds1.21.9
3 loader builds1.21.8
3 loader builds1.21.7
3 loader builds1.21.6
3 loader builds1.21.5
3 loader builds1.21.4
3 loader builds1.21.3
3 loader builds1.21.2
3 loader builds1.21.1
3 loader builds1.21
2 loader buildsShowing the newest 12 of 18 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Sodium Add-on: Substrate versions and loaders
[NeoForge 1.21.11] Substrate 4.2
substrate-4.2+1.21.11-neoforge.jar
12 Feb 2026
[Fabric 1.21.11] Substrate 4.2
substrate-4.2+1.21.11-fabric.jar
12 Feb 2026
[Fabric 1.21.9] Substrate 4.2
substrate-4.2+1.21.10-fabric.jar
12 Feb 2026
[NeoForge 1.21.1] Substrate 4.2
substrate-4.2+1.21.1-neoforge.jar
12 Feb 2026
[Fabric 1.21.1] Substrate 4.2
substrate-4.2+1.21.1-fabric.jar
12 Feb 2026
[Fabric 1.21.11] Substrate 4.1
substrate-4.1+1.21.11-fabric.jar
14 Jan 2026
[NeoForge 1.21.11] Substrate 4.1
substrate-4.1+1.21.11-neoforge.jar
14 Jan 2026
[Fanric 1.21.9] Substrate 4.1
substrate-4.1+1.21.10-fabric.jar
14 Jan 2026
[Fabric 1.21.1] Substrate 4.1
substrate-4.1+1.21.1-fabric.jar
14 Jan 2026
[NeoForge 1.21.1] Substrate 4.1
substrate-4.1+1.21.1-neoforge.jar
14 Jan 2026
substrate-4.1-Beta.4+1.21.11-fabric.jar
19 Dec 2025
substrate-4.1-Beta.4+1.21.11-neoforge.jar
19 Dec 2025
Looking for an older file? The official CurseForge project page is in Resources.



