Needs Improvement
Great potential, but ill list out some ways to improve
1) The catsle deffinately needs more ways of defense, not just pouring water (shouldnt it be pitch?) on soldirs.
2) Should have a statistics menu saying howmany of each unit you have left, that way when the catsle is demolished, you should get to keep the remaining soldiers.
3) A boss deffinately sounds good, perahps every 10 levels put out a monster/ boss to entertain us an to stop us from getting too rich or powerful.
4) A storyline would be great, just a crappy one will suffice for now, but deffinately have some story.
Make some of those improvements, and i think youll get a WAY higher score.