DNA, Yeah, it kinda is, but it's awesomeness counters that out. Basically everyone get's their own deck of cards and sets up like normal solitaire, and plays like normal solitaire, and has all the main mechanics. The only differences are you play down your hand 1 card at a time, not 3 at a time, and you can put your cards on anyone else's pile in the center. So if I put down an Ace, anyone else can play their corresponding 2 on it, including me, and then anyone else can put their 3 on the 2, and so on.
The game ends when every player is stuck and has no way to play anymore cards in the center (a player can become unstuck if another player plays a card that they can play off of). The player with the least cards in their deck and field left is the winner. It's super fast-paced, and frantic, and really really fun. It's hard to teach new people to play it, because you very slowly get better and more efficient at it.