Planet Defender
This is a fun concept I came up with today based on tower defense games, though with a twist. Basically you start off with a small 3d planet for which to buy and build structures, turrets and ship bases.
Each turn aliens spawn at certain locations around the planet and attack.
After each round your given money based on alien's destroyed vs damage taken by the planet.
Then you can use this money to buy upgrades, new structures and even research new defensive buildings.
As you progress through levels you'll be given larger planets and pitted against larger amounts and variety of aliens.
The game would be broken into three different game sections, Campaign, Sudden Death and Multiplayer Death Match.
In campaign mode there are 10 different scenarios, each with a different size planet spanning 10 unlockable levels. The higher the level the more units you can build to defend your planet, the more enemy's that swarm and the number of rounds increase.
In Sudden Death, everything is in realtime. You pick your planet, setup your starting structures/units, then start game. Nothing stops, your hit with wave after wave of aliens until your planet is destroyed.
In Multiplayer Death Match you play with another player online. one person is the planet defender, the other controls the aliens. The planet defender has all unlockables available at the start of the game. The alien controller is able to setup spawn points, increase alien numbers and command alien units where to attack. The game is timed, so if the planet is destroyed the alien controller wins, if time runs out and the planet is still standing then the planet defender wins.
Just an idea I had today. Maybe someone will make it and make big bucks.
