Split-screen on PC

Unreal Tournament III: Black Edition

Up to 10 players on one PC, with controllers, keyboard and mouse or several keyboards and mice.

10Verified handler

Handler “Unreal Tournament III: Black Edition” by josivan_silva, version 1

P4+6 more players

What works

With Nucleus Co-op, up to 10 players can play Unreal Tournament III: Black Edition together on one PC, each in their own part of the screen, with controllers, keyboard and mouse or several keyboards and mice. The free community handler “Unreal Tournament III: Black Edition” by josivan_silva does the setup and was checked by hub moderators: version 1, updated 27 Dec 2020. Unreal Tournament III: Black Edition is a shooter game from 2009.

Players10
ControllersSupported
Keyboard and mouseSupported
Several keyboards and miceOne per player
Hub moderatorsVerified

How to play Unreal Tournament III: Black Edition 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 Unreal Tournament III: Black Edition handler
In Nucleus Co-op, search the Hub for Unreal Tournament III: Black Edition and install its handler, or download the handler file from this page and drop it on the Nucleus window. Then show Nucleus where Unreal Tournament III: Black Edition is installed.
Download the handler file (.nc)
Take a seat
Each player presses a button on their own controller to join 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 Unreal Tournament III: Black Edition 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
Unreal Tournament III: Black Edition 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 controller per player, or one keyboard and mouse per player. Controllers · Keyboards and mice
A PC that can run 10 copies
Each player runs their own copy of Unreal Tournament III: Black Edition, 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

Guide: https://www.reddit.com/r/localmultiplayergames/comments/e2hhnw/unreal_tournament_iii_up_to_10_players/

If you use keyboards and mice after the instances open press the END key to lock the input for all instances to have their own cursor. Press the END key again to unlock the input. Only works with Xinput controllers (Xbox), if you don't have any you can use Xoutput to simulate them. Profile names can be changed on script, to play more than 6 players you will need a core i7 8700K or better, a good GPU, and more than 16Gb of RAM.

Xbox One gamepads will not work with focus because of this: http://www.snes9x.com/phpbb3/viewtopic.php?t=27510

About Unreal Tournament III: Black Edition

The Black Edition is a complete Unreal Tournament III package -- included is the complete UT3 (with patch 2.0) as well as the Titan Pack. The “Titan Pack” gives players a substantial amount of enhanced features and new content, including many original environments, new gametypes, the namesake Titan mutator, powerful deployables and weapons, new characters, and the Stealthbender vehicle.

Summary from IGDB