Split-screen on PC

Halo Online

Up to 5 players on one PC, with controllers or keyboard and mouse.

5Verified handler

Handler “Halo Online ElDewrito” by Talos91, version 3

P4+1 more players

What works

With Nucleus Co-op, up to 5 players can play Halo Online together on one PC, each in their own part of the screen, with controllers or keyboard and mouse. The free community handler “Halo Online ElDewrito” by Talos91 does the setup and was checked by hub moderators: version 3, updated 3 Jul 2024. Halo Online is a shooter game.

Players5
ControllersSupported
Keyboard and mouseSupported
Several keyboards and miceNot supported
Hub moderatorsVerified

How to play Halo Online 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 Halo Online handler
In Nucleus Co-op, search the Hub for Halo Online and install its handler, or download the handler file from this page and drop it on the Nucleus window. Then show Nucleus where Halo Online 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.
Launch and connect
Press Launch: Nucleus opens one copy of Halo Online 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
Halo Online 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; one player can use the keyboard and mouse. Controllers
A PC that can run 5 copies
Each player runs their own copy of Halo Online, 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

For ElDewrito version 0.7.1, you can get it from here: https://github.com/eldewrito2/ElDewritoLauncher.

Splitscreen+Online Guide: https://www.reddit.com/r/localmultiplayergames/comments/cblf97/halo_online_eldewrito_06_pc_4_player_local_coop/

Authors and Contributors of this handler: maxine64, Zensuu and Talos91 from the Split Screen Dreams Discord.

About Halo Online

Halo Online was a free-to-play multiplayer-only Halo game that was tested exclusively in Russia. The game was cancelled on August 24, 2016, when the developer, Saber Interactive, announced that "the current form of Halo Online will not be released." The reason they gave for the cancellation was that Microsoft had "failed to [make] decisions on the future of the project."

Summary from IGDB

Halo Online screenshots

Version history

v3Current
updated the handler to work with latest ElDewrito version 0.7.1
3 Jul 2024VerifiedDownload (1.6 KB)
v2
new release with settings saving fixes and keyboard support.
3 Jan 2021VerifiedDownload (1.2 KB)
v1
First Release
13 Feb 2020VerifiedDownload (1021 B)