well, it DOES look good. Though I had the impression it was more narrative focused, but maybe I understood it wrong and its more of a sandbox with a story attached.
That is exactly what it is - it's completely a sandbox with a narrative attached. The narrative is just much better than most sandbox games which is why lots of people talk about it. I wasn't really interested in it, but it drew me in eventually.
But the other problem for me is, its just hard for me to get into a game when they release patches/dlc don't actually add to the actual game. Its a huge pet peeve I guess is the word, of mine when a game releases maps (like ark and all its maps) or dlc content and its pretty much a new game instead of adding it to the base game. its always annoyed me for a long time since early in the gaming days. Kinda hard for me to get over that. Because like Subnautica, imagining a huge ocean to explore and going from one biome to a snowy/ice biome all on one character in the same world sounds amazing that its very hard for me to get over that it won't ever be like that.
A lot of that is my fault because I imagine such an amazing game and this amazing place to explore with so many different biomes from the biome Subnautica currently is in, and the snowy biome of the upcoming DLC...but cause how I see this amazing world they could have added its kinda hard for me to get past that like I said.
I get what you're saying, but I followed subnautica through early access, and they put a TON of updates into it and it's got so many biomes and stuff already - you definitely get the feeling of lots of different biomes to explore in a massive ocean. More than that though, there's got to be a point when developers say 'right, this is a finished product and we're happy with it.'
From reading their blogs and stuff, it sounds like whilst they got to the 'subnautica is a finished product' phase, they also had other an idea of an ice biome that just didn't fit with the rest of the game, as such they wanted to make it separate. I think that's fair enough, especially because the narrative (whilst you don't have to get involved in it) and the general game world wouldn't really fit just throwing another bit in. Each Biome plays a part and it's a sort of...closed system, so if they just shoved another one in it'd be difficult without wrecking the whole game to shove it in.
Sequels don't really bother me as much though for most part. Though some games would been better off adding to the game instead of a sequel, but mostly I don't get bothered by it.
Just think of it as a sequel, that's really all it is. I'd recommend you play the initial game, and just think about the ice game as a poorly named sequel.