It can be found in your tools library provided you own a copy of Skyrim (2011) on Steam. The Creation Kit for the original 2011 release of Skyrim is exclusively available through the Steam launcher.

It's the same tool used to build the game and puts the power to create new content in your hands - new quests, environments, characeters, dialogue, weapons, and more. (You can still download the original editor for Skyrim using Steam tools section.Creation Kit is a free downloadable editor that allows you to create mods for Skyrim and then share them with other players. To download mods, naturally, you need a registered Bethesda account and you have to be logged in. Also, it is not possible to enable data files in the game launcher anymore. The Launcher now supports the Creation Kit editor for Skyrim SE, and quite frankly, as a downside, forces modders to have it installed in case you want to make any kind of fully compatible* add-ons or mods for Skyrim SE or at least edit and test them. Unfortunately, it seems like mods for the PS4 version of Skyrim are severely limited (in both their scope and size) and those for Xbox One cannot be as robust as their PC equivalents either so developers of crossplatform modifications may have to take that into account - modding support for consoles is not even half as good as advertised a few months prior. That also means mods for the console releases of the game are now available. While it does not make the game as stunning as some of the HD mods made for the original Skyrim, it really is a long overdue update that finally arrived, enhancing visuals and seamlessly integrating mod support into the core of the game. The critically acclaimed Skyrim receives a huge graphics overhaul in the form of official Special Edition.

Bethesda creation kit skyrim se