Creation Kit

The Creation Kit is the official editor used to modify or create content for Fallout 4.

Background
The release of the kit was first discussed in April 2016. The Fallout 4 Open Beta of the Creation Kit was released on April 26, 2016 at Bethesda.net. The kit became supported for Xbox One in May 2016. However, even though PlayStation 4 was supposed to receive the modding tool in June 2016, it was postponed. According to Bethesda, Skyrim Special Edition will receive mods first, followed by PS4 support.

The majority of the functionality is unchanged, so modders using the old Construction Sets or G.E.C.K. will find the Creation Kit very familiar. As with every revision to a new game, however, there are a number of substantial changes to various subsystems of the editor to match Skyrim's new personality.

In addition, the scripting language was updated to the newer Papyrus language which has considerably more functionality than the scripting languages from older games. The Creation Kit was released on February 7, 2012 and is currently at version 1.9.35.0.

Download
An updated version of the Creation Kit for Fallout 4 has been publicly released for download for free on the Bethesda.net launcher following the closed beta. It can only be used by owners of the PC version of the game. More information can be found on the creationkit.com.