It's an online game. So you can't pause, but you don't need to win. Look at all the pay to play games on the android app store. Just get to spot you feel accomplished at and find a new game later. Don't get stuck.
You get tired of how the game is set-up. Some games are FPS, some games are RTS... do you really want to be stuck playing risk your whole life waiting for you're next turn on a game that doesn't really impress you anymore.
