N Terraria 2 is one of the most ancient versions of NT. Not much is known about it besides the fact that it was made for 22.214.171.124. It was a basic RPG mod, the second of its kind when it comes to Terraria (first one was Version 1 of NT) with not much going for it other than a couple extra races and classes. This was obviously a test, as it was only availible for download for about 2 weeks before a new version had to be made to get it onto 1.1 .
This is the last of two NT versions to not have a dowload, though you can check out the other downloads here