Has balance issues. Cannon are underpowered with their limited attack angle and traps are not needed. Money is very easy to earn which makes even "hard" levels simple. Mass tier 3 infantry defeat any enemy.
Other Issues/Suggestions:
1)All cannon fire at the same range contrary to the tooltip.
2)Coin count for achievements is wrong.
3)Needs toggle for speed
4)Faster speed overall
5)larger text for unit attributes
6) hotkey in tooltip
7) button next to wave is clickable, but does nothing...
8) eliminate time spent transitioning between building and action and back. Unnecessarily and frustratingly slows down the game.
The market does not improve appropriately as you upgrade it. When you trade in bonus points you get a better deal after the upgrades; however the deal sours if you are trading resources for points. Quick way to make cash - sell all crystal, upgrade market, buy crystal back at lower price.
Excellent other than the last 4 levels. They should not be so similar - show some inginuity. Repeating the same concept over and over again was painful, not fun. 4/5 for this reason alone. Well...also add some music (with mute).
Excellent game concept. Slowed down a little when sending out mass spores.
Key is to gain as many neutral locations as fast as possible. Don't worry if you lose a few, just have all of them selected and click the colony with the smallest population. Beat entire game first try.
 "Master of Fortresses"){kind=icon}
 "Cargo Bridge"){kind=icon}
 "The Great Siege"){kind=icon}
 "Color Infection 2"){kind=icon}
 "Doom 1"){kind=icon}
 "Protector: Reclaiming the Throne"){kind=icon}
 "Nano War"){kind=icon}
 "The Commanders Sister"){kind=icon}