According to the legend about Isaac written in Bible, his mother hears the voice of God that orders her to sacrifice her son if she wants to prove that her faith is strong enough. Isaac finds out about that and decides that he needs to save his life, so he runs to the basement. However, he doesn’t find shelter there – the basement is filled with monsters, the ghosts of his lost brothers and sisters, his deepest fears, and his own mother. This game is a shooter where the levels are generated in the real time. You will lead Isaac through all complexities trying to hide him from death and overcome all the monstrous creatures out there.