Documentation
Everything about Nucleus Co-op: install it, play your first split-screen session, fix what goes wrong, and write handlers for new games.
On this page
Play
Download Nucleus Co-op, add a game and launch a split-screen session in a few minutes.
ControllersXbox, PlayStation, generic and Steam controllers: what works out of the box and what needs a helper.
Keyboards and miceOne keyboard and mouse per player, the lock key, and the games that support it.
Layouts and screensSplit one TV, use several monitors, give three players a fair share of the screen.
Fix
Start from the symptom: the app does not open, a game does not launch, a controller drives two windows.
FAQShort answers to the questions people ask first, with links to the full guides.
Build
A handler is a small script that tells Nucleus how to run one game several times. Make your first one.
Publish on the hubShare your handler with everyone: packages, versions, approval and verification.
Handler API referenceEvery Game.* option and every function a handler can call.
Read the catalogue and download handlers from your own tools.
New to SplitScreen.Me?
Nucleus Co-op runs one copy of a PC game for each player, gives every controller, keyboard or mouse to its own copy, and tiles the windows on your screen. It works with games that already have LAN or online multiplayer, and the community writes a handler for each game so you don't have to configure anything. It's free, open source, and has no account, no ads and no catch. Read what SplitScreen.Me is, or go straight to the hub and find your game.