If last year's The Witcher 3: Wild Hunt was your first taste of the fantasy RPG series, Microsoft has good news: The Witcher 2: Assassins of Kings is not only available on the Xbox One starting today, but it's also free for a limited time. The news comes as Microsoft announced the latest batch of Xbox 360 games to become backwards compatible with the Xbox One, and the list also includes titles like 2D fighter Skullgirls and trippy Xbox Live Arcade game Space Giraffe. The Witcher 2 is the only game in the batch that's free, though it's only available in select territories — the US, Canada, France, Germany, and the UK — and only until February 4th. You can grab it right here.