The Binding of Isaac: Wrath of the Lamb

The Binding of Isaac is an indie game created by Edmund McMillen and Florian Himsl. It was released on Steam on September 28, 2011 and its expansion pack Wrath of the Lamb is released nearly a year later (May 28, 2012) with more contents.

Plot
The plot of the game is based on the Biblical story: Binding of Isaac Isaac lives with his mother in a small house on the hill, both peacefully keeping to themselves, with Isaac drawing pictures and playing with his toys while his mother watches Christian broadcasts on the television. Isaac's mother then hears "a voice from above", stating her son is corrupted with sin and must be saved. It asks her to remove all sins from Isaac to save him. She obliges, taking away his toys, pictures and even his clothes.

The voice again calls out to Isaac's mother, stating Isaac must be isolated from all the evil from the outside world. Once again, she follows its command and locks Isaac in his room. Finally, the voice speaks to her again. It states she has done well but says it still questions her faith and commands she must sacrifice his son, Isaac. She obliges, grabbing the butcher knife in the kitchen and goes to Isaac's room. Isaac, watching through a sizable crack in his door and starts to panic. He finds a trapdoor under the rug, and just as his mother bursts in, he opens the trapdoor and jumps down it. Now, Isaac has to flee into the horror-ridden basement in order to stay alive... Could you help him?