What happened? The game disappeared from the store.
I have it in my wishlist, waiting for at least 50% off, and now it's gone. I hope it comes back soon.

It was removed for unknown reasons.I think it will come back at one point in the future as it is not a licenced game.But if GOG can't reach the publisher,or the publisher changed his mind about DRM-free,well.... You should have bought it earlier as it never really was that expensive at 5.99 ;).Cheers