
Duality Switch
Players are paired into synchronized dual identities that alternate control of the same character.
About this Mod
Duality
Two players become permanently linked through a shared progression system.
Players are automatically assigned into paired roles (D and N).
Only one role group is active at a time. When the phase timer ends, the active players transfer their complete player state to their linked counterpart.
The inactive side becomes isolated until the next phase swap.
This creates a unique relay-style survival experience where two different people continuously inherit and continue the same journey.
Available Versions
How to Install Duality Switch on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Duality Switch". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Duality Switch server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Duality Switch compatible with fabric?
Duality Switch officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Duality Switch – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Duality Switch consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
Similar Mods
Rent Modded Server
Install Duality Switch with just one click on your server.