You need "Total Commander" app for this, I don't have history with using renpy engine with it so I'm not sure if it is possible. Still worth a try if you really want.
1. While in total commander app click on the Desert Stalker apk and open as zip.
2. Extract everything into a folder name it Desert Stalker 2. So you won't be confused.
2. While I do not know what Renpy would look like in an extracted APK form I recon it works the same and have a separate folder for your saves. Copy your save file from pc to that save folder, if there's no save folder then you're f*cked. It's also good to have a save file already because the saves might have different names.
3. Repack everything in that folder but instead of the extension ".rar" change it to ".apk" don't install it yet or do you can try and see if it works if not then proceed to step 4.
4. You need lucky patcher as well or not idk never tried it with a Renpy game.
-upper left click the 3 lines or settings
-click rebuild & Install
-find the new ".apk" file with your pc save
-Click the ".apk"
-Choose the APK without liscence verification, again not sure but choose the "Auto mode" for this since the game is not from google play protect.
5. Pull your meat.
Step 4 might not be needed since I'm guessing renpy game don't have any liscenes, still if you manage to make it to step 3 and it still did not work then might as well. And I'm guesing that the save would be incompatible with the android version anyway. But if you're dedicated enough you can make it work.
Or you know you can just skip all dialogue and be where you were from the PC save.
