To play it on windows, if you have the previous version for windows, you can just replace the renpy and lib folders as well the .exe file from the new linux version with those from the old windows version.
I had played it a bit before Treasure of Nadia but didn't go very far. I went back to it since Nadia was such a great game but I still got stuck at some point and never finished it sadly.
In the first season it was one of my favorite games at the time. The game is still enjoyable after they leave the island but it becomes a totally different experience.
Was one of my favorite games, wholesome story and nice models. I never finished it though, think I stopped when they were going to travel, and seeing the comments maybe it's better this way!