I give this game a 6 out of 10. I has great potential, but it never quite became the awesome game it should have been.
The crafting is pretty week. You access the crafting table and choose the item you want, if you have the correct ingrediants in your inventory, the item is instantly made.
None of the items are complicated at all. Use 20 copper ore, 2 gold, and POOF, you have an underwater scooter. There is no refining of minerals, there is no crafting of smaller components to later build a more complicated item.
Also if you want to build something , but don't have the ingrediants it will show you tiny little icons of what you need, but it doesn't say what those icons are. For example I needed to make a bandage to stop my bleeding, and it needed seaweed, but the icon didn't look like seaweed and I could find anything that I was harvesting that had an icon that looked like the one shown.
One last thing about the crafting. The ore to mine is everywhere. You are litterly surrounded by it. There is more ore around you then just regular stone.
The game looks very beautiful lots of underwater eye candy, The best part of the game is the look and feel of your surroundings.
Sound isn't too bad, but when night comes you get some fairly bad music start to play. seems like they were trying to copy minecraft here, but where mine craft music is peaceful sounding, this music doesn't give me that feeling.
The combat is also pretty week. The fish AI is basically always the same from every fish...charge at you at high speed straight on.
This game could have been so much better, but it feels like a game that is still in Alpha, but it is a finished game.