Medium Level 9 - Good Plumbing

Waves: 24
Lives: 10
Cash: $60

Not too difficult for a Medium Level. It's nice that you get the chance to shoot critters several times with the same tower. Looking forward to playing 'Swarm' when it comes out.

Medium Level 8 - Bad Plumbing

Waves: 24
Lives: 10
Cash: $50

Build up the defences, and slow them down. Fun trying to guess where they will appear from next.

Medium Level 7 - Sticky Hairball

Waves:18
Lives: 10
Cash: $50

This is kind of fun and not too difficult once you realise that you need weapons that have a longer reach and which can catch fast moving critters. So I opted for laser towers exclusively and got through once more without losing a single life....

Medium Level 6 - Sneaky Snake!

Waves: 12
Lives: 10
Cash: $50

I used a combination of all the available towers. The critters needed wearing down early in their journey, although I also needed to place some towers near the last lap to catch any sneaky ones. It took quite a few attempts before I found a winning formula.

And here is a video of a slightly different solution.

Medium Level 5 - Happy Thanksgiving!

Waves: 12
Lives: 10
Cash: $50

It was tempting to get very strategic with this Geodefense level, with carefully placed lone wolf towers gradually enhanced. Except that the critters kept gettin through. In order to survive with all lives intact, I was forced to resort to lots and lots of green Blaster Towers to wear them down. And wear them down I did.

Medium Level 4 - Sidelines

Waves: 20
Lives: 10
Cash: $50

The answer is surely green.

Medium Level 3 - The Hat

Waves: 40
Lives: 10
Cash: $50

This design is updated as more recent versions of GeoDefense are much harder. The solution below has been tested for iPhone and iPad. The wigglers are indeed tough, but the Missile Towers emit plenty of splash damage, especially when they are upgraded several times. Plenty of Shock Towers are just what the doctor ordered, along with some strategically-placed Lasers.

Begin by placing Lasers at the corners to shoot along the straights. Connect them to a Vortex Tower so that they suck up excess energy.



Upgrade the Missile Tower to level 6.



Lots of shock towers are needed to slow down creeps for the crucial level 20.



Once you get past this level without losing a life you are on home ground.



When you have the layout below you don't need to do much else except for upgrading for seven levels.

The final level here is shown on the iPad.