How do I install Overworld Expansion?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Overworld Expansion work with?

The listing gives Minecraft 26.2. This is the version stated by the author or source site, not something we verified ourselves.

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Overworld Expansion

Java data pack listed for Minecraft 26.x. Downloads from the MC Java Mods app on Android.

by TOP_G2026 · on Modrinth

⬇ Download on Modrinth

Open in MC Java Mods Get it on Google Play →

Custom Terrain is a pure worldgen, server-side datapack that combines refined surface terrain with expanded cave biomes into one seamless world generation pack, with all custom gameplay systems removed.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft version listed: 26.2
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 — see the MC Java Mods guides for the full walkthrough.

File checked by MCModsHub

Downloads as Custom_Terrain_26.2_FULL_REDO_v3.zip
Download size: 4.2 MB
Download link checked 17 Oct 2026 — working

These come from our own check of the pack file, not from the source page.

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