Good, but not so relevant as other Stellaris DLCs. And a bit pricey.
This DLC is a "species pack", so you get what you expect: some new portraits for races, a new graphic design for their ships and special civics and origin for subaquatic empires. All this content is fine.
But it's more expensive than other species packs (Humanoids, Plantoids, Lithoids and Necroids are all 8$ / 8€), and I miss for this "species pack" something more like "Synthetic Dawn", the DLC centered on robotic empires which added all those features but also music and more content (events, a reworked crisis...).
So... Aquatics is good optional content for Stellaris, but I'd like to see on these species pack a more "integral" approach, à la Synthetic Dawn.








