This collection is the greatest way to capture the Diablo experience. Every last ounce of released Diablo material is contained here (with the exception of Patches that have contained "some" additional content). For those who don't know, Diablo was Blizzard's jump into the RPG realm. However, players quickly realized that it was more like playing the arcade version of Dungeons and Dragons. After prolonged exposure, the Diablo community cried out for a whole host of features and changes and Diablo II answered the call. A year later, Blizzard released the expansion, which seemed to completely flesh out the franchise with loads of new features that took the game to a whole new level. The story in all three titles plays out as one long story with years passing between DI and DII. The game contains enough features to make learning the game easy but earning everything difficult. It was a good balance to have and since playing on-line is free, you can count on hours and hours of replay ability. My advice to anyone picking this up, immediately start playing on B-Net for it is the exact same experience as single player, only it contains the potential to be cooler through continuous play even after you've completed the story and the ability to group with others if you so desire!