Split-screen on PC

Atlyss

Up to 16 players on one PC, with keyboard and mouse or several keyboards and mice.

16Verified handler

Handler “ATLYSS” by Zensuu, version 1

P4+12 more players

What works

With Nucleus Co-op, up to 16 players can play Atlyss together on one PC, each in their own part of the screen, with keyboard and mouse or several keyboards and mice. The free community handler “ATLYSS” by Zensuu does the setup and was checked by hub moderators: version 1, updated 28 Jul 2025. Atlyss is a role-playing, adventure and indie game from 2024.

Players16
ControllersNot supported
Keyboard and mouseSupported
Several keyboards and miceOne per player
Hub moderatorsVerified

How to play Atlyss split screen on PC

Get Nucleus Co-op
Download Nucleus Co-op, free for Windows 10 and 11, and unzip it into its own folder, for example C:\NucleusCo-op. There is no installer.
Keep it out of Program Files, your user folder and OneDrive.
Download Nucleus Co-op
Install the Atlyss handler
In Nucleus Co-op, search the Hub for Atlyss and install its handler, or download the handler file from this page and drop it on the Nucleus window. Then show Nucleus where Atlyss is installed.
Download the handler file (.nc)
Take a seat
Each player joins with their own keyboard and mouse and takes a spot on the screen. Pick a layout that fits your players.
Playing with several keyboards and mice? Press End once everything is in place to give each window its own cursor.
Launch and connect
Press Launch: Nucleus opens one copy of Atlyss per player and lays the windows out on your screen. Then link them in game, usually one player hosts a LAN or online session and the others join it. The handler notes say how.

What you need

A Windows 10 or 11 PC
Nucleus Co-op runs on Windows only. System requirements
Atlyss for Windows
Installed on that PC. Nucleus starts every player's window from that one install.
Nucleus Co-op, free
With .NET Framework 4.7.2 or later and the Visual C++ 2015–2022 runtimes (x86 and x64). Download
Something to play with
One keyboard and mouse per player. Controllers · Keyboards and mice
A PC that can run 16 copies
Each player runs their own copy of Atlyss, so the PC carries several times the usual load. Lower the graphics settings if it struggles. Performance tips
A multiplayer mode
Nucleus links the windows through the game's own LAN or online mode; the handler takes care of it.

Handler notes

◦ Supports multiple mice and keyboards.

◦ Read the handler notes in the UI carefully.

◦ Authors and Contributors of this handler: Zensuu. A special thanks to the Nucleus Co-op and Split Screen Dreams communities.

About Atlyss

Enter the world of ATLYSS, a single-player/online RPG where you can fight with or against friends in a surreal world filled with creatures beyond comprehension. Customize and progress your character(s), complete quests, and discover strange locations.

Summary from IGDB