Atlantic Quest is a match three game. You have three match options to select from. There is the "swap two items to create a straight line of three or more" style. There is the chain style where you click and drag your mouse along a line of three or more of the same items, and there is the click on a group of three or more of the same items style. You can swap between styles at any time by selecting it at the bottom. There are fish trapped in green oil bubbles. Below these are blue bubbles with a picture of an item from the board. To release the fish, match the item in the blue bubble. Also on the board are green oil tiles. Make matches over these to clear them. To clear a level, clear all green tiles and free all fish.