Anoxemia

Anoxemia is a story-based exploration game in which you'll take control of the scientist Dr. Bailey and his mission drone ATMA. You'll search the seabed, discovering and taking samples from the depths of underwater caves. Dangers lurk in every passage, such as toxic currents, mines from the war and mobile machines that go crazy. There's also the constant threat of running out of oxygen. Fortunately, ATMA can help you reach your destination with a few special tools and upgrades. Provided you find them, that is.