It's D&D the game.
Easily hundreds of hours of content with all of the origins and custom class creations, and side quests and encounters. You are truly free to make choices in this game. If a quest giver pisses you off, the game won't stop you from killing them however you see fit. If you need some more coin, find a lonely merchant to pickpocket to your heart's content. If you want to romance a companion, by all means go right ahead (though some prefer you keep it between the two of you). If you want to breeze through the game with little to no challenge, there's a story mode. If you want the grueling hardcore combat experience, and the inability to save scum, cheers! They've got a difficulty for that! And if you can beat the game on it's hardest difficulty you get to use a GOLDEN DIE on any other character! SHINY PIXELS!