Great idea for a game, although I don't think it was done very well. Sometimes I start a bridge and test it out and it will work fine. Then I work on another part of bridge, not touching my first part, and the first part doesn't work anymore. I don't understand this.
A tip if you are getting stuck on the early levels. Upgrade all your stuff before sending units out to hurt the castle. The enemy only sends their strongest units out once you've damaged their castle.
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