2. Dark Souls
When you are talking about a really challenging game then you must talk about Dark Souls. It is not only challenging, it is downright difficult. But that’s what makes this game so good. It will push you to your limits as a gamer. This RPG is a neatly crafted, intelligent game that refuses the players any sort of help to complete the storyline. Every achievement you manage to complete in the game will solely be on your own credentials. If you can manage to provide enough time and effort then this will surely be one of the best games you have ever played. Just don’t lose your temper when you fail for the hundredth time.