Years ago, when I was still running Windows, I enjoyed your Marine Aquarium.
Just recently I remembered it and just wondered if there's a version for Ubuntu (or linux for that matter). Turns out there isn't.
I asked for it and this is the response I got:
Hello,
We had talked about a version for linux before, however it wasn't cost effective to do so. With some of the recent developments in the Linux world we are beginning to reassess this. Unfortunately it still means I don't really have an answer for you yet.
Of course we are constantly working to make SereneScreen a better product and your feedback helps make that possible. Your suggestion has been added to the list of recommendations for the artist and programmers.
Additionally I'd suggest you bring it up on the fan forums at
https://www.feldoncentral.com/Sachs/
Would you like to see the aquarium on Ubuntu (and Ubuntu Touch) or other linux distributions?