That in mind: Splintered Sea is more Besiege, thoughtfully applied to its already expansive toolkit.
To give some structure to its sandbox modes, the meat of Besiege consists of challenge maps.
Splintered Sea adds 10 new challenge maps and 8 new aquatic building blocks.

In short: no-one told me this game was basically an Ork simulator.
You usually get at least one good shot before you completely topple over.
Ambient music and pouring rain tell of a conflict bringing despair to the land.

Was this your plan, Lord Duke?
A piece of paper!
The ocean has fish in it, and you’re able to murder them individually.

I didnt do this, of course.
They just got caught my spinny bits accidentally.
Here is me using a harpoon to steal some treasure.

So, if youre considering picking them up, its worth asking where you fall on the in/extrinsic scale.
Also a giant squid at one point.
Its great and I love it.
Seven out of six point five thoroughly shivered timbers.
This review is based on a review build of the game provided by the developer.