What are some alternatives?
When comparing Innotoria Tower Defense and Towers of Oz, you can also consider the following products
Bloons TD - It's time, once again to achieve total Bloon popping satisfaction, this time in the form of...
Fieldrunners - Fieldrunners is a game developed by Subatomic Studios, for Steam/PC, iPhone/iPod Touch, iPad...
Bejeweled Blitz - Our games are sprinkled with a whirlwind of smile-inducing awesomeness and polished to a shiny sheen that keeps the world coming back again and again.
TowerMadness - Tower Madness is an epic 3D tower defense game for iOS.
Royal Revolt - Royal Revolt is a reverse tower defense game with beautiful 3D graphics and intuitive gameplay!
Robo Defense - Robo Defense is the ultimate portable tower defense experience.