New features and some additional towers don’t make this feel too different from the other entries. Fundamentally this series hasn’t evolved a lot from its roots as a Flash game, but it’s still a decent example of the past-its-prime tower defense genre. The presentation is pretty great, with the new 3D art style actually having gameplay implications as level decorations can now break some of your towers’ line of sight. There’s a new upgrade system that adds some longevity but ultimately it’s more or less the same game it’s always been. Only really worth getting for diehard tower defense fans.