Terraria Nucleus Co-Op Guide
Terraria local split-screen via Nucleus Co-Op supports 2-4 players exploring and building together on a single PC. Works with both vanilla and tModLoader.
Get game setup in NucleusRequirements
How to Set Up Terraria Split-Screen
Terraria is one of the simplest and most reliable Nucleus setups. Both vanilla and tModLoader versions have official game setups.
- 1.
Install game setup
Search 'Terraria' in Nucleus and install. Point to Terraria.exe (or tModLoader.exe for the modded version).
- 2.
Assign Inputs
Terraria works great with multiple keyboards/mice or controllers per instance.
- 3.
Host World
Click Play. In the first instance, open a world and set it to multiplayer (LAN). In the second, join via the LAN server list.
Tips
Terraria is extremely lightweight — 4-player split-screen runs on almost any PC.
Use tModLoader handler for modded Terraria — make sure all instances have the same mods enabled.
Each player has their own character and inventory but shares the world.
Journey Mode characters cannot join non-Journey worlds — use matching character modes.
Common Issues
Terraria second instance can't find the LAN world +
About Terraria Split-Screen
Terraria is a 2D sandbox action-adventure game by Re-Logic, with over 50 million copies sold. Its 4-player online multiplayer is one of its most beloved features.
The game is extremely lightweight, making it one of the best Nucleus Co-Op choices for lower-end hardware. Four full Terraria instances can run on most modern laptops.
tModLoader, the official Terraria mod platform, has its own dedicated Nucleus handler. This enables modded Terraria split-screen — a highly requested feature for mod packs like Calamity and Thorium.
Terraria's Nucleus handler is among the oldest and most stable in the library, having been maintained since the early days of the project. It is frequently recommended as a beginner Nucleus Co-Op setup.
