Just saw that these puzzles were ported to Pocketbook ereaders last year
https://github.com/SteffenBauer/PocketPuzzles
and I wonder, if this isn't possible for Kobo ereaders (especially for the vlasovsoft -package).
OK, an ereader ist primarly for reading books, but I agree, to play now and then one of these small games really would be very nice!