Blighttown is a location in the video game Dark Souls, known for its dark atmosphere and challenging terrain. It is situated beneath the Undead Burg and is characterized by toxic swamps, wooden walkways, and steep cliffs. The area is inhabited by various enemies, including Toxic Rats and Blighttown's inhabitants, which add to the difficulty of navigating through it. The environment in Blighttown is notable for its toxic effects, which can damage players over time. Players must manage their health and resources carefully while exploring the area. The design of Blighttown emphasizes verticality, requiring players to climb and descend through its treacherous landscape.