This reminded me a lot of an old screensaver called "Johnny Castaway". And it really felt like it too, while fishing for all the parts to make a raft.
I think rating it based on its compellingness is unfair, since it didn't seem to be trying for that, so as a cozy experience, I'd say it was laid back, and the island was nice to look at and the music calming to listen to while I chilled out.