I thought I'd post details of my newest game design. It is titled Defense of Planet Earth. It will be a "tower defense" game where you defend the Earth from invading aliens. On the world map you will be able to move ships around to attack UFO's and defend against UFO landings. UFO's in turn will attempt to land at your cities. When they land the game will change to a city battle screen. There you will place gun and laser turrets and you'll need to defend against waves of attacking aliens. Winning the battle gives you research points to invest in weapon and ship upgrades. Losing a battle will mean you lose the city permanently. You win the game if you defeat all the UFO craft that are invading Earth. You lose if the aliens destroy all your cities.
I am creating it with my XNA game engine which I made in the ongoing development of Planet Wars. I am still going to develop planet wars, but I need to reassess its scope - to do it justice means a lot of time. Though I'm unsure if Defense of Planet Earth (DoPE) wont turn out the be the same thing! I love game design and come up with new and grand ideas every month, but unfortunately they end up being too big for one developer
Game design document (which is very much a work in progress) if anyone's curious:
http://users.on.net/~dfidge/forums/dope.doc
Here's a few pics:





