Purple Series

TrackMania Nations Forever contains six series in its campaign: White, Green, Blue, Yellow, Red and Black. However, in an interview with a local newspaper, Nadeo CEO Hylis revealed that before the game's release, the development team was working on a seventh series after the Black series: the Purple series. He described it as "cruelly difficult", and mentioned it was not meant to be part of the main campaign, but instead an epilogue after finishing the Black series. However, he did not add much more information, and he did not release any maps that were part of the series. As such, fans of the game have made many maps trying to replicate this lost series.
== Features ==
Apart from its extreme difficulty and purple colour, little is known about what the series would have looked like. However, some speculative ideas have become popular with the community:
* Some believe it would have been based on the underworld, given the series was intended to go after the Black series. These people suggest that the difficulty of the tracks would be due to the Player having to come to terms with what he has done.
* One theory that exists is that the Purple series would have the Player trying to break out of the computer, with each track in the series representing the Player getting one step closer to breaking free.
In addition to the most popular theories, some fringe theories also exist.
== Found Tracks ==
Hylis's interview suggsted that the Purple Series was at least partially done, but he did not release any finished or unfinished maps, leading many to believe that these had either been deleted or would not be released. However, in 2018, the player DrSosa found an early version of one of the tracks in an unsecured server. The track featured a series of boosters directly towards a wall, which had a finish on the top of it. There was seemingly no way to get to the top, as the whole track was surrounded by water and walls, preventing the player from escaping. Many players tried to finish it, including the then-legendary Fred, but not even he could finish it - a feat particularly impressive considering that Fred would later be found to have cheated all of his records. 
Some players who attempted to use weaseling in order to complete the track found that when in the middle of the weasel, every time they attempted to get back into the 3D realm, they were instead pushed further and further into the fourth dimension, causing confusion amongst these players, as on almost every other track there would be some way to get out of a weasel, even if in an useless spot. Many have theorised that the track requires using a bug not yet found, whilst others believe that since the track was unfinished, it was impossible in the state the leaked version was in.