The company Snail Games laid out an open access tool kit PixARK Dev Kit. The library is designed to create custom content in the PixarK video game. Players got access to tens of thousands of templates and settings, allowing to make any modifications, up to the creation of their own voxel universe.
PixARK Dev Kit
PixARK is a survival game, based on a popular C++ written Unreal Engine.
PixARK Dev Kit is fully integrated with Steam Workshop. The game itself can be found in the Steam store, and the toolset can be downloaded via Epic Games launcher.
The game has a mixed rating on Steam. Earlier Epic Games arranged a free distribution of assets after the closure of MOBA Paragon.