The The Queen and the Sea Add-on for Dead Cells has 13 achievements worth 330 gamerscore.
Reach the Crown for the first time!
You beat the Queen!
You finished the Lighthouse!
Reach the Lighthouse for the first time!
Reach the Shipwreck for the first time!
Get the Leghugger to evolve
You beat the Queen without taking a single hit!
Beat the Queen by pushing her into the void
Beat the Queen with the Killing Deck
Beat the Queen with a Queen outfit
Help the shark get back to the water
Finish the Lighthouse while wearing a Servant outfit
You finished the Lighthouse without taking any damage!