Exonautis

Exonautis is an underwater sci-fi survival game set on an oceanic exoplanet. Dropped into a vast alien open world with nothing but your wreckage and S.A.L.T to guide your, you must make your way to Kappa Outpost and begin your exploration of the Calliope 4348A. The planet is home to many biodiverse ecological systems brimming with vibrant but equally dangerous fauna. Every biome in Sector Alpha is different, from lush and sunny coral reefs, to deep and dark ravines and caverns, you need to learn about how each zone works in order to survive and dive deeper. After crashlanding on Calliope 4348A, you will need to find water, food, make yourself warm and most importantly, manage your oxygen. Scavenge the ocean floor for resources, craft supplies and tools such as a scanner, sampler and gun. Upgrade your equipment in order to explore deeper, more dangerous areas. After having crashlanded in Sector Alpha and barely surviving, you must head to Outpost Kappa. However, things get even stranger when you discover everyone disappeared.