No Mans Castle in the Sky, 2016-10-29
No Mans Sky was a flop, but maybe not for the reason you think. The core reasons is that procedural generation does not create content for you. You have to.

Celestia picture of the hour

This picture was created with Celestia virtual planetarium. Click to see in full. A new image is generated every hour, the object, the time and the direction is randomly chosen. It is not that simple, but that's the gist of it.