To avoid for the claustrophobic and those who fear when you can't see the bottomSubnautica is so well-known that I won't say much about it. I'm not sure if choosing the survival difficulty was the best choice for a first playthrough -- I seem to be getting hungry and thirsty really fast -- but I'll stick with it. The world is super beautiful, although more than a little creepy especially at night. I haven't made much progress yet, and have no idea where to find most of the materials (well, except underwater obviously), but it's already been a lot of fun. Diving also feels refreshing due to the hot weather we're having in the real world.
Enjoy:My personal favourite.
I kinda like the swamp, at least whenever I'm not fighting Bloedzuigers, but yeah, Murky Waters is something else...Always nice to escape Wyzima and the Swamp.