Don't bother unless you want to wait hours or days for things to happen, it's basically a war game and not that good, the computer does it for you. Those big splash puzzles you get on the promo do not exist, at least I've not played any. The couple of very basic puzzles and I mean basic just repeat themselves ever few hours, so do them once and that's it. Waste of storage and memory so off my phone it's going.