This game doesn't just kill time, it murders it. I work at a retail store and quite a good amount of time can go by between customers coming in so I find myself with plenty of time to poke away at this game but can still drop it at a moment's notice when someone walks in which is nice. I hate having to yell at customers because they made me die on whatever game I happen to be playing. Thankfully with this game I can just take care of the customer while my team continues to beat the life out of whatever mouse or snowman happens to be in my way at the time. Works for me!