IMO Sometimes finding the goal is part of the fun. Minecraft similarly has no end goal for the game, at least initially. The goal driven storyline was added later I believe.

For me recognizing that the count on the left is simply new items I discover out of possible 560 was part of the fun aspect of this surprisingly simple but engaging game

The goal is to turn yourself into a neural network adapting to the peculiarities of the environment in order to solve the given task as quickly as possible.

Playing this game has given me more insights into the intersection between human problem solving and algorithmic problem solving than any puzzle I've worked on since Sudoku.

I'm at 284 elements discovered and I don't think I'll only go through this once. I may end up downloading the tree, and writing programs to traverse it.