[AmirGT]

Asphalt 8 is a nice racing game but it drains the battery a lot, same for GTA San Adreas too. Piano Tiles seems to be the only app that drains less battery out of all of these.

I will try Asphalt. I had GTA: SA Lite so it doesn't drain battery, also I don't like this kind of games like Piano Tails and such but thank you for suggestions.

is it probably beacuse piano tiles is a 2d games . and 2d games doesnt eat lot of cpu ang gpu resource as the other 3d games . but some 2d game do eat resource most of them because it eat cpu because of the gameplay

Agree.

GTA SA Lite? Is it something other than normal sa or just mobile version because I've never heard about it.

I don't know actually but I downloaded it from a blog and that's it LINK you just have to know your processor model and download the OBB files which it same as your processor model. You will have to use CPU-Z to know your processor model, you will find the app in Google Play Store.