Deus Ex: Human Revolution is hard to fault and remains thoroughly entertaining even once you've beaten it. There's a serious amount of game here with heaps of replay value and you can easily take 30-40 hours to get through it on your first play. If you were to do everything available or go for a 100% stealth play then it would last even longer and there is also already DLC on the horizon. Deus Ex: Human Revolution is a tremendous achievement and a fantastic example to other games of what is possible with enough effort. Simply put this is essential gaming at its best.