Sunless Sea and it's origin site Fallen London : Not for the feint of heart, awesome reviews and amazing lovecraft-like dark steampunk universe
I haven't found the time to play Sunless Sea since a month or two before launch, but I did put in somewhere close to 150 hours on earlier versions. Something always seemed to be a little lacking in gameplay (and ship upgrades), but I loved the world and the writing enough to overlook any number of flaws... and Fallen London pretty much permanently lives in a pinned tab on my browser. I just (finally) finished building myself a zubmarine. -Bats
