A free app for Android, by Karate Goose Studio.

We know that being stranded in the middle of the ocean is terrifying. Now, you get to experience how you will be able to survive when you get in that situation. 

Oceanborn is a realistic simulation game designed for Android that offers unique gameplay where you need to do everything in order to survive in the ocean. 

Gather all the important resources and craft the things that are necessary for your survival. You can build flooring, stairs, and more that will serve as your shelter. You also need to hunt for food and grow vegetables that you need to stay alive.