geoDefense Swarm by Critical Thought Games is finally up on the iTunes app store now. It’s an open level version of the original game; So instead of blasting creeps along a single pre-defined path, it is up to you to create a maze of obstructions in order to fend them off.
I really like geoDefense, it’s one of my favorite iPod Touch games. A while back I was on a tower defense bender and tried out virtually all games of this genre on the app store (the ones with a free demo that is). This one was my favorite by a fairly large margin. It’s harder, fast paced and require a fair bit of thought and strategy for many of the higher levels. The vector graphics are also colorful, clean and well presented.
If you are still unsure, it’s only $0.99. It includes 30 levels across three difficulty groups. There are several new features not present in the original. I don’t know if this is the permanent or promotional price, but either way it’s well worth picking up.