Nice time filler, sometimes watching adds doesn't pay out. Designed frustration points can be silly, even with buying packages it can get ridiculous on how much you would have to buy to get past. Just be patient, grinding Titan pieces was bad enough only to find upgrading those ships would be incredibly time consuming on price scaling, I gave up. The math of the package prices are not consistent, don't let kids just click random buys. Nice graphics and artwork, app normally runs very smoothly.