KatieB the game self saves pretty frequently, so that should not be a problem: it seems to pick up again wherever you leave it.
From the same stable (Nyamyam) there is another unusual game which I also bought because they were bundled together at a discount, Astrologaster, and which seems to be not so much a game as an interactive entertainment, but rather fun: set in Shakespearian times with jokes and madrigals, I am still not quite sure what to make of it, but it becomes gently addictive...
It reminds me of old books and card games which told a story with multiple possible threads depending upon the choices made by the reader/player (which is of course actually a feature of quite a few computer games!

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https://www.youtube.com/watch?v=Qpjyo5lP7Qc