I installed this on my Galaxy Tab a couple weeks back to check out how it was coming along.
I got the APK files set up as per your instructions, and verified that it would load properly. However, I was working my way through a couple other games and didn't start a new play of this at that time.
Then, fucking Samsung pushed another update at me shoving Google's social engineering bot further down my throat. I pulled the sim card, turned off wi-fi, blue-tooth, and set it in airplane mode.
Last night, I tried to open the game, and it won't load. It just spins the circle saying "unpacking files" or whatever it is exactly. I waited 5 minutes, and it wouldn't open. I tried three times. Every time it was the exact same result.
So, we have evidence that the game LOADED fine when the game had connection to the net, but is broken without access to the net.
So, my question to you is: Why does it seem like I need an internet connection in order to load the game files installed on my device?