Sorry to say that this game is kind of a total mess, you will need to improve plenty of things to make this game funny and playable such as:
1- If you have a variety of units, at least make them with diff abilities so the may result useful in different situations.
2- Initial money should be balanced, no fun at all try to manage a game start with 360 coins and u have 1.300 on the next one.
3- There is no plot at all and no transition between levels.
4- include some specialization trough upgrades for the units.
5- change where you can place units on each map.
6 - Include some kind of reward for upgrading base apart from increasing population.
7 - Also different types of anemies which make you build some strategy would be great.
Apart from these few things i know there are much more that many other people could comment.
2 stars for you, hope to play in a time and have a greater experience
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