I genuinely love the game why are you splitting the game into 3 parts (im not saying i dislike it), if the size is a problem why not make it a downloader instead but if its something technical id like to know im kinda curious
Size is indeed the issue, unsigned application bundles are capped to 2GB on Android. Creating a downloader would be technically possible (the engine supports it), but it would mean massive bandwidth costs for me personally as well.