Five Nights at a Casino is a chilling horror game that follows the story of a young man who becomes ensnared in the clutches of a demonic casino. The casino, a front for a Satanic death cult, preys on its victims' greed and desperation, luring them into a false sense of luck and prosperity. But nothing comes for free, and the protagonist soon learns the true cost of the casino's offerings.

As a night guard, the protagonist is tasked with maintaining order and security, but his efforts are futile against the malevolent forces that control the casino. On day 5, his contract is terminated, and he is left to face the harsh reality of his situation. Filled with anger and despair, he turns to gambling as a means of escape, only to lose everything he has, leading him on a path of self-destruction.

But even in his darkest moments, a glimmer of hope remains. A chance encounter with the new victim of the casino's machinations leads him to the final stage of grief: acceptance.....