1C Company announces that King's Bounty: Dark Side is now available via digital distribution, offering the latest installment in the King's Bounty series for Windows and OS X, saying retail boxed versions will follow "at a later date." You can see a bit of the turn-based strategy/RPG in this recent trailer, and here's a brief description:

King’s Bounty: Dark Side is the next chapter in the award-winning King’s Bounty saga. Time has come to join the Dark Journey to the other side of Teana and visit a mysterious part of the world never before seen by royal bounty hunters.

For the first time in King’s Bounty series, players will be able to choose their hero’s race as well as class. Become a fearless Orcs warrior, lead and heal your troops as a Demoness, or use dark magic as a fearsome Vampire.