Confluence: Otherworld
Players who want Terraria-style 2D action inside a 3D Minecraft world can use Confluence: Otherworld, an adventure expansion for Forge and NeoForge.
What it does
The mod merges content from Minecraft and Terraria into one large adventure expansion. Its stated aim is to keep the core character of both games while turning Terraria's 2D gameplay into a 3D experience. Many classic Terraria mechanics are carried over, and the fusion extends into accessories and other parts of the game.
Confluence: Otherworld is built for Minecraft's standard survival and adventure play, and it needs no other mod to run. It is published for Forge and NeoForge only, with files for 1.20.1 and 1.21.1, and the latest file for both loaders is 1.2.9. Client and server must both run it, so every player on a server that runs it needs the mod too.
The code is open source under the GNU Lesser General Public License v3.0 only, and public source and issue-tracker links exist. Five catalog mods are built on it, including Confluent Enchantments and Confluence: Rechiseled.
Key features
Terraria mechanics
Many classic Terraria mechanics are included, bringing familiar combat and progression patterns into the Minecraft world.
Accessories
Accessories are one of the areas the fusion covers, adding equipment slots and items beyond standard armor.
3D conversion of 2D play
Terraria's side-scrolling gameplay is reworked into a three-dimensional form that fits Minecraft's world.
Large-scale content
The expansion adds a broad set of new content spread across adventure, equipment, food, mobs and world generation.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 5 mods
Use cases
Adventure playthroughs
Players looking for new content and progression goals in a survival world can use the expansion as its own adventure path.
Multiplayer servers
Server owners who run the mod must install it on the server, and each player joining that server needs it as well.
Who it’s for: Players who enjoy Terraria's mechanics and want them inside Minecraft, and server owners who run adventure content for groups of players on Forge or NeoForge.
How it compares
Terrariaswords is a Forge and NeoForge mod for 1.20.1 – 1.21.1 that is also client and server, but it is all rights reserved and not open source. MCTerra covers the same loaders and client and server environment, with files for 1.20.1 – 1.21.4 under the MIT License, and it is not open source. Otherworld Biomes is a Forge-only server-side mod for 1.20.1 under the MIT License, so players can join without installing it, and it is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Confluence: Otherworld | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-10-13 |
| Terrariaswords | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-06-26 |
| MCTerra | Forge and NeoForge | 1.20.1 – 1.21.4 | Client and server | 2025-03-31 |
| Otherworld Biomes | Forge | 1.20.1 | Server-side only | 2024-12-26 |
Questions
Does Confluence: Otherworld need to be installed on both sides?
Which loaders and versions does Confluence: Otherworld support?
Does Confluence: Otherworld require any other mods?
In the catalog
Confluence: Otherworld is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 32,366 mods support Minecraft 1.21.1.
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Official listing
- Modrinth page
- modrinth.com/mod/confluence
- Owner
- Magic_Team.Jvav
- Published
- 2025-03-02
- Updated on Modrinth
- 2026-10-13
- Facts verified
- 2026-10-15