Maybe I am just stupid... but how do you start the game? I bought the game, downloaded it, and then unzipped it but I am unable to find the application to start it. I have never had this problem with any other game on itch.io.
You can start the game with BottleBiosphere.exe
It is possible that your firewall or antivirus deleted the exe file when you unzip it. Renpy occasionally mistaken as virus.
