Hey Aussie,
AHITR and many other games like it, at its current stage, have become too big for APK.
The RPA file runs with the official AHITR Android Launcher which you can download here on Itch or the Patreon!
We also have a handy Android installation guide if you'd like to have a gander: https://www.patreon.com/posts/android-guide-85301983?utm_source=patreon&utm_medi...
Hope this helps o/