UE4SS is the scripting framework most Palworld mods build on. Lua mods, Blueprint logic mods, and PalSchema all load through it. Install it once and every UE4SS-based mod drops into the same folder structure.
This guide covers the Steam and Game Pass PC versions plus dedicated servers. The install is a copy-paste into one folder; the only thing that changes per platform is which folder.
Where UE4SS goes
<Palworld folder>/Pal/Binaries/Win64The path is relative to your Palworld install folder. On Steam: right-click the game, Manage, Browse local files. On Game Pass: use the Xbox app file management to find the install.
<Palworld folder>/Pal/Binaries/WinGDKThe path is relative to your Palworld install folder. On Steam: right-click the game, Manage, Browse local files. On Game Pass: use the Xbox app file management to find the install.
<Palworld folder>/Pal/Binaries/Win64The path is relative to your Palworld install folder. On Steam: right-click the game, Manage, Browse local files. On Game Pass: use the Xbox app file management to find the install.
<Palworld folder>/Pal/Binaries/LinuxThe path is relative to your Palworld install folder. On Steam: right-click the game, Manage, Browse local files. On Game Pass: use the Xbox app file management to find the install.
Install UE4SS
- Open the install folder for your platform
Use the path shown above for your platform. You should see the Palworld game executable in that folder.
- Download the Palworld-compatible UE4SS build
Get the framework package from its PalMods entry so the version is the one tested against 1.0.
- Extract everything into that folder
The archive contains a proxy DLL (dwmapi.dll in current builds) and a ue4ss folder. Both sit directly next to the game executable. Do not nest them in a subfolder.
- Launch the game once
Start Palworld normally. UE4SS writes a UE4SS.log file inside the ue4ss folder on a successful load.
- Verify it loaded
Check that UE4SS.log exists and has a recent timestamp. If it does, the framework is live and UE4SS mods will load from the ue4ss/Mods folder.
Uninstall UE4SS
- Delete the proxy DLL
Remove the proxy DLL (dwmapi.dll) from the install folder. That alone disables the framework.
- Optionally remove the ue4ss folder
Delete the ue4ss folder too if you want your mods and their settings gone. Keeping it is harmless; nothing loads without the proxy DLL.
Next steps
Frequently asked questions
Do I need UE4SS for every Palworld mod?
No. Plain pak mods work without it. You need UE4SS for Lua mods, Blueprint logic mods, and anything built on PalSchema. Each PalMods mod page states its loader.
Does UE4SS work on the Game Pass version of Palworld?
Yes, on PC. The install is identical but goes into the WinGDK binaries folder shown in the platform tabs above.
How do I know UE4SS is working?
A UE4SS.log file appears in the ue4ss folder after you launch the game. No log file means the proxy DLL did not load.