Dai Ameter is a Creator NPC in Bob Plaza. He is an astronaut, and loves the mathematical term Pi (π). He only appears on March 14 (3/14), as he is shy on all other days. When he is there, he sells special Space Models.
- His name is a play on Diameter, which, times π (Pi,) equals the circumference of a circle.
- He appears only on 3/14 (March 14) as it is π Day (Pi Day,) a holiday celebrated in honour of π.
- Some players might mistake him as a robot, as he is talking in numbers.