If you haven't checked out the Knights Onrush game for the iPhone/iPod touch, here is your chance to do so for free.

The free version features:

-Endless Siege mode
-Only 3 enemy types
-No Highscores
-Automatic save/load

The full version which sells for $0.99 has 11 enemy types, 12 castle campaign and must more.

Here is a gameplay video of the free version:

You can try the free version and here is the download link

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MTR