Split-screen on PC

One-Armed Robber

Up to 4 players on one PC, with keyboard and mouse or several keyboards and mice.

4Verified handler

Handler “One Armed Robber” by birden, version 1

What works

With Nucleus Co-op, up to 4 players can play One-Armed Robber 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 “One Armed Robber” by birden does the setup and was checked by hub moderators: version 1, updated 3 Jul 2025. One-Armed Robber is a shooter, simulation and strategy game from 2023.

Players4
ControllersNot supported
Keyboard and mouseSupported
Several keyboards and miceOne per player
Hub moderatorsVerified

How to play One-Armed Robber 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 One-Armed Robber handler
In Nucleus Co-op, search the Hub for One-Armed Robber and install its handler, or download the handler file from this page and drop it on the Nucleus window. Then show Nucleus where One-Armed Robber 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 One-Armed Robber 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
One-Armed Robber 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 4 copies
Each player runs their own copy of One-Armed Robber, 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

IMPORTANT: Start the game once and change some settings before trying split screen.

You won't have your bought items in split screen.

About One-Armed Robber

One-armed robber is a chaotic first-person heist game that centers around a uniquely challenging premise. Players take the role of a determined robber equipped with only one arm, tasked with pulling off daring heists on banks, shops, and various establishments.

Summary from IGDB