Good news! People who have purchased or will purchase Betrayal at Krondor on Good Old Games will now automatically get Betrayal in Antara for free. This poorly received sidequel was based on an original IP after Sierra lost the rights to Midkemia, and is not directly related to Betrayal at Krondor other than using the same engine. Still - free game!
Betrayal at Krondor: Midkemia – a realm of enchantment and ancient magic where elves, dwarves and man once battled an unimaginable evil across rifts in time and space. The legends tell of a boy named Pug who would become Master Magician. His friend, Tomas, would wield the unearthly armor of the Valheru and command the armies of Elvandar to fight the final titanic battle at Sethanon. In Betrayal at Krondor experience an all-new tale in the Riftwar legacy as you travel the world of Ramar.
Betrayal in Antara: As the mighty and benevolent empire of Antara fractures under the weight of corruption and war, four unlikely heroes find themselves faced with an insidious mystery involving the most powerful figures in the empire.