In this case, their procedural generation system they created, and are using in Zenith: Infinite Realms to bring together more content, faster, but still keeping the human involvement and refinement.

Procedural generation is transforming how games are built, offering endless variety and replayability without the need to handcraft every detail. From roguelike dungeons to vast open worlds, ...

It’s not uncommon for games to include as much content as possible in an attempt to keep you hooked for dozens, if not hundreds, of hours. But for most games, that well of content will eventually run ...