Android Market

A tower defence game with a twist. You must defend your base from enemy attack by building / upgrading defence towers. Money is awarded for kills to spend on upgrades. Interest is earned on the money not spent.

It’s a tower defence game with very limited amount of room to add your defences, though towers can be upgraded almost limitlessly. It almost looks like a GPS application, but it’s being favourably received by Android gamers.

The Pro version adds a gold tower, which allows you to ‘mark’ enemies, and then collect a bounty on them when they’re destroyed.