Aquanaut is a game of underwater exploration that puts you in the driver's seat of a small submersible pod on a mission to discover hidden treasures. Using your mouse, click and hold to guide the pod around a colorful undersea world. Navigate through dangers of the sea, up and around rocks and structures and, with a steady hand and a little luck, you will find the treasure chest at the end of each level. As an added challenge for additional points, collect coins and gems scattered around the levels to increase your score.
The dangers that stand in your way are the plentiful sea creatures that inhabit the world. Ranging from puffer fish that rhythmically expand and contract, often blocking your path to some very smiley starfish, these enemies will damage your pod with every touch. At your disposal is an unlimited stash of depth charges. Press [space] a drop charge that will go off in three seconds or when it comes in contact with an enemy, which ever comes first. Most enemies take multiple hits to destroy, but will drop precious coins and valuable gems. Just be careful not to get in the way of your own charge, as they, too, will damage your pod.