The Mouse is a critter and cannot harm players. However, unlike most critters, they cannot be harmed by monsters. Mice have only 5 health. They spawn in Underground and Cavern layers. Their small size and speed can make them difficult to spot even in well-lit conditions, although they occasionally squeak. Unlike most other critters, NPCs will prevent mice from spawning.
- 老鼠的 怪物图鉴条目：“老鼠无害地尖叫，在潮湿的地下寻找小昆虫。”
- 电脑版 1.3.1：现在可用于制作老鼠雕像。
- 电脑版 126.96.36.199：引入。