Batman: Arkham Origins is currently available via Amazon for $19.99 for a digital download. The code activates via Steam. It is the standard edition and does not include any DLC.
Product Description (from Amazon)
Platform: PC Download | Edition: Standard
Batman: Arkham Origins features an expanded Gotham City and introduces an original prequel storyline set several years before the events of Batman: Arkham Asylum and Batman: Arkham City, the first two critically acclaimed games of the franchise; Taking place before the rise of Gotham City's most dangerous criminals, the game showcases a young and unrefined Batman as he faces a defining moment in his early career as a crime fighter that sets his path to becoming the Dark Knight; As the story unfolds, players will meet many important characters for the first time and forge key relationships
Requires Steam Client to activate.