FOSS gamedev and creative worlds

So how hard would it be for someone to do a 3rd person mod? ive kind of wanted one for a while, you know- just to go along with the 3d player mod, btw- could someone give me a link to that in the comments, and do any servers use that mod?

1) Wrong Section.

2) These are not named comments, these are named Reply's.

sorry, i was just asking about a casual question so i assumed it would go here, but i forgot about the modding general page, please forgive my mistakes.

:/