Subnautica is everything you want from an early access game. The devs listen to the community and activily develop it, making this one of the games im proud of supporting during early access.

When I bought the game, the basic thing to do was survive, and that was almost everything that it had and it still was fun. As time went by they started adding a storyline (which they are still working on) and its a really good one. You feel like you are actually in the Subnautica world because it is so emersive and so intriguing. During the night time you will just get lost as you swim in the ocean because the game is so beautiful and the lifeforms that habit the deeps are mind blowing.

Buy the game, play it for 2 hours if you don't like it, refund it, but I tell you this one of the best early access games out there if not the best.