In Dragon Delta, you want to move your pawn over a system of bridge-like planks to the other side of the board. An easy task! Or at least it would be if everyone were working together, but alas you're not. Instead you're all working on your own right next to one another, each convinced that your way is best.
In game terms, players simultaneously select one card from a set of five actions that's available to each player. The actions allow players to place plank foundations, place planks, move their pawns, cancel other players' actions, or remove planks or foundation stones. As can be expected for a design with simultaneous action selection, the game is rather chaotic.
The 2012 edition of the game, River Dragons, includes a double-sided game board not present in earlier editions, with one side of the board featuring rock piles on which you place stones (as in the original Dragon Delta), while the other side has a featureless river on which players can place stones in any location.