Luckily it’s DRM-free. Back up your installers. I wanted to call attention to this, because in a very unusual move, it’s being removed even for people who own a copy, whereas usually stores will only remove a game from sale and still host the files for existing owners to download.
Sounds like something I’ll have to look into before the takedown.
Edit:
Sounds like something I might have to “demo” in the future.
It’s still available via GOG if you want the game DRM-free.