All of you who have played geoDefense know that geoDefense Swarm is really a game that is worth having. It’s another entry into the weary genre of tower defense games on the iPod touch, but in terms of purity of gameplay, geoDefense Swarm may be the king of the hill at the moment. While it doesn’t quite match Fieldrunners in terms of accessibility, it’s definitely a better game for experienced tower defense lovers looking for a challenge. We highly recommend it, and rate it an 8.3 out of 10. If you’ve never played a tower defense game, you set up defenses around an area, and then try and survive wave after wave of enemy assaults. In geoDefense, your towers can’t get damaged, so the game’s all about placing them correctly to defend your home base. Graphically, geoDefense Swarm references heavily the neo-vector graphics that leapt to popularity with the popular game Geometry Wars. Bright colors on a black background with glowing, space-warping explosions all over the place. In the heat of battle, it can be very difficult to tell what’s going on due to all the flashing lights. For all the chaos, the different towers and enemy types are easy to distinguish, due to unique colors and silhouettes. The interface shows that Critical Thought Games know what they’re doing, as it’s precise and easy to handle. The game isn’t without flaws. It has quite a steep learning curve, and learning how various towers and creeps (that’s the bad guys) work isn’t explained very well, you just have to use trial and error. You’re definitely thrown in the deep end with this one and are expected to sink or swim without much instruction. To be honest nothing is perfect, which means that this game is not without its flaws, but we really that in the future these flaws will be corrected, and turn this amazingly fun game into an absolute must have.