I have worked on two constructed languages. One is called Thorbin, and was made when I was 12 with my best friend and creative collaborator Robin. The other is called Inglo, and is modeled off of Ido in lots of ways.

Ido is a constructed language that is an offshoot of Esperanto, the most well-known and widespread constructed language. Ido nerds are few, fewer even than Esperanto nerds. :)