0. I'm not giving Google any money, and most mobile games are DRM'd into oblivion (you will lose access to the game once their company falls apart or decides to block access to game content, you cannot play the game fully offline and over LAN). There's very few mobile games which you can actually own after you buy them. And the ones which you can own are either filled with trackers or ports of PC/console games, or both. As for (((micro-transactions))), only retards spend money on those. I refuse to support such a garbage industry so if I'm ever interested in playing anything I just download the apk file and install it that way.
There's really no reason to pay for mobile games. 99.999% of them are a scam or garbage.