Brushify packs are available here and World Creator can be downloaded there.
The entire process of setting up an island took only an hour of work thank to the number of assets available in the Brushify environment library.
Brushify is a toolset for UE4 that lets artists build levels quickly with the help of ready-made assets and environments. All the sets can be found here. are available here.
The toolset brings robust shaders, automatic landscape texturing and multiple biomes. “This valuable resource means you can spend more time designing and building your game, instead of modeling these sort of generic environment assets,” states the artist.
Check out an interview with Joe Garth about Brushify if you want to learn more: