If you are looking for a mobile game that help you stak more sats then Bitcoin Bounce from THNDR Games is perfect for you.
It is a simple ball bouncing game in which the more tickets you collect the better chances you have to win bigger prizes in daily contests.
Here is a screenshot of the current prizes.
And here is a screenshot of my latest payouts.
You don't have to worry about fees or waiting for your withdraw to get processed since they use lighting network for they payouts and everything is instant,I am using bluewallet and i never had any issue and as far as i know they support most of the lighting wallets.
The game is still in Beta and until this is over all the Beta players/testers are guaranteed to win at least the minimum daily prize.
I hope you enjoy the game and stak many sats.