Split-screen on PC

Alone in the Dark: Illumination

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

4Verified handler

Handler “AloneintheDark” by Talos91, version 6

What works

With Nucleus Co-op, up to 4 players can play Alone in the Dark: Illumination 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 “AloneintheDark” by Talos91 does the setup and was checked by hub moderators: version 6, updated 21 Oct 2021. Alone in the Dark: Illumination is a shooter and adventure game from 2015.

Players4
ControllersSupported
Keyboard and mouseSupported
Several keyboards and miceOne per player
Hub moderatorsVerified

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

READ the handler notes in the UI very carefully or this won't work. Tested with latest legit Steam version. Make sure you lower in-game graphic settings like textures and shadows for better performance. The second mines stage is very buggy even in the regular game, example: when placing the batteries and explosives, use these solutions to get past them: https://steamcommunity.com/app/275060/discussions/0/208684375416935517/

Authors and Contributors of this handler: Zerofox and Talos91 from the Split Screen Dreams Discord.

About Alone in the Dark: Illumination

A darkness has fallen over the town of Lorwich. Monstrous hordes emerge from beyond the realm of nightmares to sow chaos on the land. As one of four heroes, you must battle the minions of the old ones with the force of arms, and the power of illumination. Inspired by the writing of H.P. Lovecraft, Atari’s Alone in the Dark series is recognized as the “Father of the Survival Horror Genre”. Alone in the Dark: Illumination explores this dark legacy in a terrifying action-horror experience. Battle through dynamic environments filled with bloodthirsty beasts. Build your party as you rescue your companions including the Witch, Engineer and Priest, each with a unique set of special abilities and weapons. Danger lurks in every shadow. While your friends may help, at the end of the night you are always Alone in the Dark.

Summary from IGDB