Here’s where it gets tricky. Bethesda has updated Skyrim Special Edition multiple times, but the release of Anniversary Edition (AE) in November 2021 changed the game’s executable version from (the final "pre-AE" SE build) to 1.6.x .
Copy skse64_1_6_640.dll , skse64_loader.exe , and skse64_steam_loader.dll . Paste these files directly into your Skyrim root folder. Step 3: Install the Scripts Folder Inside the SKSE archive, locate the folder named Data . Inside Data , you will find a folder named Scripts . skyrim skse 1.6.640
Almost every SKSE-dependent mod from late 2022 through 2024 was compiled for 1.6.640. Here are major examples: Here’s where it gets tricky
If using , set the SKSE tool dashboard icon as primary. Essential Companion Mods for 1.6.640 Paste these files directly into your Skyrim root folder
If you are using a mod manager, you should configure the manager to launch SKSE instead of the vanilla launcher. In Vortex, you select "SKSE" from the dashboard. In MO2, you change the executable dropdown at the top right to "SKSE" before hitting Run.
For modders running or Anniversary Edition (AE) on version 1.6.640 , using the correct Skyrim Script Extender (SKSE64) is essential for a stable, high-performance experience. While newer game updates (like 1.6.1170) have since been released, 1.6.640 remains a popular "stable point" for many large modlists. The Correct SKSE Version for 1.6.640
Skyrim Script Extender (SKSE64 for Special Edition) is a tool used by the Skyrim modding community that expands the scripting capabilities of the game. While the base game allows for mods that change textures, items, and basic gameplay, SKSE allows mod authors to tap into the core code of the game engine. This enables complex features such as custom animations, new UI elements, physics modifications, and advanced combat overhauls that would otherwise be impossible.