Because I have a android and I can't download much games

I really want this game, I tried to download it many times but my phone won't let me download it, I wonder how is a phone that has lower ram and older version than my phone can download from googleplay or taptap but I can't. The reason why I want this game is because it looks good and I like this kind of game, and many of my friends play that

I want THIS game .... I have very power full 4gb ram phone