Windrose is a smash hit — it’s sold over 1.5 million copies in just over two weeks. The pirate survival adventure game hit Steam in early access form on April 14 and immediately shot up the most-played games chart on Valve’s platform.

Sea Dogs is a weird one because the RPG has several sequels, most of which do not carry the Sea Dogs name due to licensing issues. One of those is even called Pirates of the Caribbean, because Disney acquired the game midway through development and ...