Fieldrunners was of the pioneers of Tower Defence games on the iPhone in general and the first open-field TD game in particular. It’s no wonder it spurred a number of clones. The more confusing thing is seeing such clones appear more than a year after the original was released. And with a defunct feature set nonetheless! And having said this let’s dive into Tower Defense Evo – maybe it DOES have at least something to say for itself? Feel free to discuss this review of Tower Defense Evo in our forums.