Yes, I installed 1.6.3. I opened the game, 5 seconds passed and it closed. I do not know what is the matter. No, please don't stop making a mod for this game. The mod is cool.
See it for yourself, pay attention at the top right corner showing it's version 1.6.3 at the beginning of video.
Have you even installed the v1.6.3 game APK I provided?
Also, I am giving serious thoughts to stop modding this game. It's really tiring and troublesome as I always need to justify the mod is working.