User Score
6.8

Mixed or average reviews- based on 59 Ratings

User score distribution:
  1. Positive: 37 out of 59
  2. Negative: 17 out of 59
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  1. Aug 22, 2011
    6
    Not quite sure why this is getting an unqualified 10 / 10- it's not a bad game, but it's hardly going to set the world on fire. The graphics are good, it plays well enough, but full marks? No. The game is overwhelmingly brown, the plot is generic beyond words (i.e. there are bad aliens, and you must stop them), and you don't really get to do that much.

    On the other hand, it's cheap, so if
    Not quite sure why this is getting an unqualified 10 / 10- it's not a bad game, but it's hardly going to set the world on fire. The graphics are good, it plays well enough, but full marks? No. The game is overwhelmingly brown, the plot is generic beyond words (i.e. there are bad aliens, and you must stop them), and you don't really get to do that much.

    On the other hand, it's cheap, so if you need another disposable timewaster, go for it.
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Metascore
92

Universal acclaim - based on 20 Critic Reviews

Critic score distribution:
  1. Positive: 19 out of 20
  2. Negative: 0 out of 20
  1. Dec 24, 2025
    100
    A great twist on the now-tired tower defense genre, and one of the best games of the year.
  2. Dec 24, 2025
    80
    A very good-looking game, and one that is well-designed. The levels can be daunting at times, but it really just takes some strategic planning in order to solve the game's challenges. For those who have played one too many tower defense games and want a new perspective on things, this is worth checking out.
  3. Dec 24, 2025
    70
    It's almost possible to execute a hands-off completion of a level, but the app will always find a way to surprise you and cause you to react.