Tower defense games have been around for multiple platforms for years.  Made popular in recent years in the web browser and on the Apple iPhone, Tower Defense is now a mobile favorite.

And now Tower Defense for Windows Mobile is here.

“Build your defense in this best selling real time strategy game and try to block the massive amount of enemies running for your base. Includes Hummers, B2 bombers, spy drones as part of 17 different units. Use 6 different towers with 3 upgrade levels. Play on two battlegrounds with totally different strategies. Choose easy, hard or unlimited mode.”

Requires a Windows Mobile 6.x powered touchscreen smartphone or PDA.

In case you don’t know, tower defense games involve using towers of different types to kill hordes of invaders before they can make it to your protected base.  The strategy involves placement of the towers, the types of towers you place (different towers have different effects on your enemies), and how you manage your upgrades.