How do I install Spontaneous-Replace: Terriforest?

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 Spontaneous-Replace: Terriforest work with?

The listing gives Minecraft 1.21, 1.21.1. This is the version stated by the author or source site, not something we verified ourselves.

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Spontaneous-Replace: Terriforest

by GameGeek-Saikel · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Fabric3 builds
Mod loader Quilt3 builds

Minecraft version

Minecraft 1.21–1.21.1Newest
Minecraft 1.20.5–1.20.6
Minecraft 1.20.3–1.20.4

Minecraft 1.21–1.21.1Newest
Minecraft 1.20.5–1.20.6
Minecraft 1.20.3–1.20.4

⬇ Download for 1.21–1.21.1 · Fabric ⬇ Download for 1.20.5–1.20.6 · Fabric ⬇ Download for 1.20.3–1.20.4 · Fabric ⬇ Download for 1.21–1.21.1 · Quilt ⬇ Download for 1.20.5–1.20.6 · Quilt ⬇ Download for 1.20.3–1.20.4 · Quilt

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Spontaneous-Replace: Terriforest — screenshot 1

The Foundational World Expansion Of Spontaneous-Replace

The Spontaneous-Replace expansion adds various exotic trees and bizarre biomes.

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✦World Generator✦

Generator

Terriforest adds various different world presets to Spontaneous-Replace. With the power of the Silk API, these world presets come with special block generators. These special generators can be freely extended, managed by version, and even refresh world generation!

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✦Featured Plants✦

Plant

Terriforest adds various wonderful special plants to Spontaneous-Replace, each unique and diverse. These plants have different special growth methods and magical uses. Go out and gather them, and enjoy picking!

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✦Mystical Tools✦

Tool

The plants from Terriforest add a variety of magical items with different uses to Spontaneous-Replace. These tools are powerful and versatile, so discovering these items and tools will bring you great benefits.

💥If you would like to support the Spontaneous-Replace💥
💥Please consider contributing to our Patreon or 爱发电!💥
💥Head over to modrinth to download the mod or join our discord community💥

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✦Note To Other Authors✦

Modpack Author：

You can use this mod in your modpack without notifying me, but state the author of the mod and cannot cancel the mod button display.

Mod Author：

This mod is completely prohibited from appearing in your mod. This mod is open-source on GitHub, and you can use the code according to the license without asking me. I fully support creating expansion mods for this mod.

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21, 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.

Verified by MCModsHub

Ships as spontaneous-replace-terriforest-1.0.0+bu+1.21.1.jar — drop this file into the mods folder
Download size: 339 KB
Download link checked 31 Aug 2026 — working

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

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21