The Abyss

2D top down exploration game, where you play a submarine in which have plunged into a dangerous abyssal ocean in search of artifacts. The player must take care to avoid collisions to their fragile sub and search for fuel in sub wrecks to keep themselves going. Find objects by pulsing out sound waves and navigate through the level to find artifacts. Every pulse reveals the map, but also creates sound which can be heard by the creatures that stalk the deep. You win by finding and collecting all four artifacts.