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Download PCA

PCA compiles Papyrus scripts for Skyrim SE, AE, LE, VR, Fallout 4 and Starfield.

Since 5.9.0 there is a single executable, PCA.exe, for every one of them: download it once, pick your game in the settings.

Skyrim SE / AESkyrim LESkyrim VRFallout 4Starfield

Extract the archive anywhere you want. It is not recommended to install PCA inside a directory that needs admin privileges, mainly Program Files.

New to PCA? The installation guide walks you through the whole setup, and a wizard does the same inside the app on first launch.

Skyrim Special Edition and Anniversary Edition​

Download PCA for Skyrim SE / AE

Requires the Skyrim Special Edition: Creation Kit, free on Steam.

Extract Data\Scripts.zip into Data, so the source scripts land in Data\Source\Scripts. PCA can do it for you from its Creation Kit report.

Skyrim Legendary Edition​

Download PCA for Skyrim LE

Requires the Skyrim Creation Kit. It has no Steam store page: install it from Library — Tools.

Extract Data\Scripts.rar into Data\Scripts, so the source scripts land in Data\Scripts\Source. PCA cannot open a .rar, use 7-Zip or WinRAR.

Skyrim VR​

Download PCA for Skyrim VR

There is no Creation Kit for Skyrim VR. Install the Skyrim Special Edition one, choosing the Skyrim VR folder at install time — its compiler works for VR just as well.

Fallout 4​

Download PCA for Fallout 4

Requires the Fallout 4: Creation Kit, free on Steam. The Bethesda Launcher was shut down in 2022.

The kit ships one archive per content under Data\Scripts\Source, each one sitting in the folder it fills. Extract them where they are.

PCA supports Papyrus namespaces and imports only the three roots Fallout 4 actually uses, which keeps the compiler command line short.

Starfield​

Download PCA for Starfield

Requires the Starfield: Creation Kit, free on Steam.

Extract the Scripts folder of Tools\ContentResources.zip into Data. The compiler lives in Tools\Papyrus Compiler, not Papyrus Compiler as on the other games — PCA knows.

Papyrus namespaces are supported.

What you need in every case​

  • Windows. PCA is a Windows application.
  • The Creation Kit of your game. It ships the Papyrus compiler and the source scripts every script is compiled against.
  • A purchased copy of the game. Only purchased versions are supported.

PCA reads your game folder on first launch and tells you exactly what is missing, with the action that fixes it. See the Creation Kit report.