which randomly appear in Marsh Biomes. A Rundown House can house up to 4 Merms, and it respawns a Merm in 4 days after it's killed. During the [[Day]], only 1 Merm per Rundown House is normally outside (unless it gets into combat, then all other Merms come out), and when dusk comes, all Merms go outside, much like [[Spider]]s. Merms will attack if the player or any other mob gets too close to their house,or if their house is attacked or destroyed. Similar to Pigs, when they are provoked, they will attack in groups and will kite.