3 stars, it's a well-done game but in its current form I'm not sure I'd even call it half-finished.
I like having lots of units. It looks like there's 60+. Good thing I've got a Protectopedia to tell me about them, right? Well, it doesn't; it just gives me some lore that's nice but not helpful. The first thing I learned: melee units can't damage flying enemies. This would be fine, except the game's leveling system seems to encourage you to power-level one or two heroes and ignore the rest. So heroes with melee units are useless. You can swap units randomly, but there's no way to tell what units you can get except experience. Many units have buffs so similar they can be considered identical.
Maybe I'd know this stuff if I'd played Protector I-III, but that's not a good excuse. To me, it feels like the creator should have let this one sit on the drawing board for another couple of months and added some documentation. A big game requires explanation; this game lacks it.
Worst game I've ever played. Shame Kongregate picked this one for a badge. Controls are laggy, objectives are unclear, and if the game just happens to decide to send more than 2 waves of fast zombies you're toast.
4/5 because I have yet to defeat the "boss". I understand that I'm supposed to lure it into its own attacks, but after I do this once or twice it just gets too fast.