As much strategy as Rock Band

In that you cant just randomly poke at it and expect anything to happen. Aside from that, its more puzzle than strategy. The number of viable maps (and repetition of the first five waves) make it feel more like trying to guess the "solution" to combination lock. 0-0-0. No? OK, 0-0-1. No? Repeat as infinitum.
On the other hand, you dont have to worry about remembering prices of towers and upgrades, because they change with every. single. level.
Oh, and misplace a single tower in the first 5-ish waves and you might as well restart, cos there ist a penny to spare.
There are randomly tiles that have special meaning, and you wont get any explanation on what they mean. Not even on the developers page for the game.
But hey, it IS addictive! Like cigarettes!

PhillipJ.Fry about geoDefense Swarm Lite