modpacks.ch by CreeperHost No ads. Just mods.
Back to mods
Terra Rasa project artwork

CurseForge · Minecraft mod

Terra Rasa

Fabric library for replacing a dedicated server's worlds while the server is running, promoting new worlds with canonical dimension keys.

Choose a version Pick your version below, then grab the matching file.

Quick answer

Which Terra Rasa release should I use?

Updated today
Latest stable file Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge)
Game version 26.2
Loader NeoForge

Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge) targets 26.2 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. 1 required mod needs a matching file.

Where it goes

Is Terra Rasa required on the client, server, or both?

The project page does not say whether this file belongs on the client, dedicated server, or both.

Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release NeoForge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume

The source does not explicitly classify this release as client-only or server-only.

Understand client and server requirements Read the Minecraft installation guide

What else does Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge) need?

Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge). Change the file and its required mods may change too.

1 required mod needs a matching file

Install neo Tect first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.

neo Tect Needed by Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge)
required
No matching file

We only count dependency files that match this setup. A file for another loader does not fill the gap.

Before you install it

Add Terra Rasa without breaking your instance.

Built for Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge). Pick another file and the loader, install side or required mods may change.

  1. 01

    Stick to this file

    Use Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge). It targets 26.2 with NeoForge; another release may have different loader, side or dependency requirements.

  2. 02

    Bring the mods it needs

    Install neo Tect first, but 1 required mod has no matching file for this setup. Do not mix loader builds to force a match.

  3. 03

    Put it on the correct side

    The project page does not say whether this file belongs on the client, dedicated server, or both.

  4. 04

    Pick the file you checked

    Use the “Get this file” button beside Terra Rasa 0.4.1 (Minecraft 26.2 NeoForge). It opens that exact file at the source.

About this project

What does Terra Rasa add?

Terra Rasa is a Fabric library for replacing dedicated or integrated server worlds while the server keeps running. It prepares fresh, seeded dimensions in the background, then promotes them under their **real canonical dimension keys**. Players stay connected, and vanilla continues to see minecraft:overworld, minecraft:the_nether, and minecraft:the_end as the active worlds.

That canonical identity is the key difference from temporary-world or dimension-alias approaches: vanilla itself continues to own portal travel, spawn selection, the End fight and gateways, credits, /seed, advancements, and data packs that target those dimensions. Terra Rasa replaces the levels behind the keys; it does not emulate each feature around a temporary dimension.

What the library provides

Utility What it does
DimensionPolicy Declares which dimensions are replaced, which service dimensions persist, and leaves every other dimension untouched.
PinnedSeed Keeps persistent and external dimensions on the world's original seed while resettable dimensions use the new world seed.
WorldPreparationService Builds fresh levels under isolated staging identities, finds the vanilla spawn, preloads it, optionally pregenerates configured areas, and publishes a durable ready manifest.
Live pregeneration Paces the remaining area after activation, records progress, and resumes it after a restart. The host configures per-dimension radii through WorldPreparationService.
CanonicalActivationService Drains old levels, promotes staged world data, constructs new vanilla levels under canonical keys, and rolls back on failure.
Startup recovery Uses the activation journal to finish or undo an interrupted swap before vanilla opens dimension storage.
SessionReset Resets vanilla's server-owned and per-player run state through live server objects. Hosts choose whether and when to call it.
CanonicalLevelEvents Lets mods that cache level objects veto retirement or rebind to replacement levels. A Chunky adapter is included and loaded only when Chunky is present.

The host mod owns the game rules, player flow, and the decision to reset session state. See Host integration for the lifecycle and Library reference for the utilities and storage model.

Requirements

Terra Rasa provides a separate build for each supported Minecraft version:

Minecraft Java Fabric Loom Fabric API
1.21.11 21 1.17.21 0.141.6+1.21.11
26.1 25 1.18.4 0.145.1+26.1
26.1.1 25 1.18.4 0.145.4+26.1.1
26.1.2 25 1.18.4 0.155.3+26.1.2
26.2 25 1.18.4 0.161.0+26.2
26.3 25 1.18.4 0.165.0+26.3

Each build uses Fabric Loader 0.19.5. The full target list is maintained in gradle/minecraft-targets.json, and CI builds every target. Terra Rasa 0.3.0 introduced support for dedicated servers and integrated single-player/LAN hosts across the listed targets. Version 0.3.1 fixes legacy Overworld activation on Minecraft 1.21.11.

Project description from CurseForge.

Pick your setup

Terra Rasa by Minecraft version and loader

Choose the version and loader you play, then open the matching release.

10 available setups

Check the dependencies, then try the file in a copied instance before changing a world you care about.

Recent files

Terra Rasa versions and loaders

45 of 45 releases match

Looking for an older file? The official CurseForge project page is in Resources.

Keep browsing

See more mods

Like this one? One of these might be worth a look.