unreal-linux-auto-open

Automatically opens .uproject files with the correct version of Unreal Engine on Linux. Double-click on any .uproject — it detects the version and launches the right editor.

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Install

git clone https://github.com/MultiUpGame/unreal-linux-auto-open.git
cd unreal-linux-auto-open
bash install.sh

A folder picker will appear — select the folder where all your UE versions are stored (e.g. /home/user/UE/). The script will scan it, detect all installed versions automatically, and set everything up.

That's it.

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What install.sh does

• Installs zenity if not present
• Copies the script to ~/.local/bin/
• Scans your UE folder and writes the config automatically
• Registers .uproject as a file type in the system
• Creates a launcher entry for each detected UE version with its icon
• Sets the default app for .uproject files

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Config

Config is generated automatically at ~/.config/ue-versions.conf. You can edit it manually if needed:

4.27 = /home/user/UE/UE4_27/UnrealEngine/Engine/Binaries/Linux/UE4Editor
5.4  = /home/user/UE/UE5_4/UnrealEngine/Engine/Binaries/Linux/UnrealEditor

Custom/source builds use a GUID instead of a version number — find it in your .uproject file under EngineAssociation:

{0004A0B4-08DE-9DB4-BB53-F9B8850D3D35} = /home/user/UE/UE4_27/UnrealEngine/Engine/Binaries/Linux/UE4Editor

To re-run the scan after adding new engine versions, just run bash install.sh again.

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Dependencies

• zenity — installed automatically
• python3 — available on most Linux distributions