“Avast me hearties! Shiver me timbers and prepare to be boarded,” I might say, “as piratical mount ’em up Caribbean! [dev’s site] has launched.”
I wouldn’t, though, because the common perceptions of pirates’ speech is a bit wonky and what kind of a monster would spread myth as stone-cold fact? I mean, people who find it funny, sure. And saying “Arrrr!” is fun. Anyway, I would roll with similar facts: Caribbean! (exclamation mark and all) is built on the Mount & Blade engine, and does have Mount & Blade-y gameplay with extra guns and pirates and naval battles boshed in, and it is out. Arrrr!