If you are like me and love strategy defense games, then you are going to love Kingdom Rush. It is by far the best tower-defense game I have played online. It’s fun, challenging, and also innovative. In normal tower-defense games, you build static weapons and then apply upgrades, but Kingdom Rush shakes it up a little by allowing you to build a “barracks” which then in turn builds units that run around a specific area fighting enemies. It’s a fresh approach to what is often a static genre of games. The skill tree is also fun and varied. Usually, skill trees are just damage or range increases for units, but the developers included some fun ones that you don’t always see. And most importantly, it’s not nearly as repetitive as other web based tower-defense games. Every level is a new map and often contains new enemies. A strategy that worked on the previous level will probably have to be changed to deal the new challenges. All this combined has made me obsessed. Play at your own risk!
Edited: December 28th, 2011