From the campaign:
Champion of Earth is a fast-paced card game. The concept is simple: defend the Earth from the invaders using various (and hilarious) pieces of equipment.
All you have to do to win is kill more monsters than the other players. That should be easy, right?
The equipment defeats monsters through number-matching: anything with an equal or higher value than the monster will destroy it. Some equipment has special abilities, which allow it to look at face-down cards, have a bonus against certain types of enemies, or even wipe all of one type of enemy (Alien, Undead or Creature) off the table!
The Kickstarter is already funded, so it's on to stretch goals for the next 33 days.