Based on a DnD campaign, Critical Error is a dramatic narrative set in a post-apocalyptic world, focusing on the protagonist, Ryan, who is faced with the devastation caused by a catastrophic event. The writing is vivid and descriptive, painting a picture of a desolate landscape and a protagonist struggling to survive amidst chaos and danger. Ryan is portrayed as a determined and resourceful character, willing to risk his life to help others and overcome the challenges he faces.