xmodgames - in play store... or you can search via the world wide web (i perfer duckduckgo)

This app allows you to mod certain games (for the time being)

to name a few:
clash of clans
boom beach
candy crush
subway surfer
angry birds
2048
plants and zombies
and ect.

they plan on expanding the list which they scan all games you have an then ask if you would like to see support for such games

this app helps alot more for those who plan to download "modded" apk files because each update to said game will have a update for the "hack"

Root required!