The Skyrim Script Extender (SKSE) is a tool used by many Skyrim mods that expands scripting capabilities and adds additional functionality to the game. This is the same version that is hosted on main website, but should be the most user-friendly to install and update.

Script Extender (SKSE) is a tool for The Elder Scrolls V: Skyrim created by Ian Patterson, Stephen Abel and Paul Connelly that extends the scripting capabilities offered to moders and because of that a lot of mods require it to run properly.

Modders and mod users alike have been eagerly awaiting the arrival of a version of Skyrim Script Extender that is compatible with Skyrim Special Edition. That day still hasn’t arrived, though after some delays and news that SKSE64 wasn’t even being worked on, there’s still some good news here. An alpha has appeared, and while it’s only intended for mod authors to check out and begin testing, it’s still a good sign that someday a full version might be available for everyone.

7z archive Alpha build – source code Alpha build 

The Script Extender is a mod other Skyrim mods rely on, as it expands Skyrim’s scripting capabilities and allows for added complexity and functionality. A number of mods for the original Skyrim have not been ported over to the Special Edition yet, simply because the same level of functionality isn’t available without the SKSE.

So, yay! Good news, it’s being worked on. Just to say this again, however: this is an alpha build for mod authors to take a look at. If you’re a mod user, don’t expect support or questions to be answered by the team working on the new SKSE. Just be patient and keep your fingers crossed that we’ll see a complete and working version of the SKSE64 sometime in the future.

Once installed, no additional steps are needed to launch Skyrim with SKSE’s added functionality. The Steam in-game overlay must be enabled for this integration to work. If you prefer running without the overlay, start Skyrim by launching skse_loader.

If you use multiple Steam libraries, please make sure to install SKSE to the same library that you have chosen for Skyrim.

By default, this installation will automatically update to the latest version of SKSE when released. If you prefer to stay on an older version, they will be available via the “betas” tab, allowing you to pick an older build.

System requirements


    • OS: Windows XP or newer
    • Processor: Dual Core 2.0GHz or equivalent processor
    • Memory: 2 GB RAM
    • Graphics: Direct X 9.0c compliant video card with 512 MB of RAM
    • DirectX: Version 9.0
    • Storage: 6 GB available space
    • Sound Card: DirectX compatible sound card