On June 30, 2006, TrackMania United was announced, a version that amalgamated all previous TrackMania editions into a single game that includes all the environments from the earlier games, and subsequently future installments of the series. TrackMania United features a peer-to-peer networking system allowing players to share custom content more easily, and a unified ranking system. The updated graphics engine includes a shadow mapping acceleration system, which is used in the most recent Stadium version. The new engine allows for more realistic shadows on high end systems while the Stadium environment has double the number of blocks featured in the free version, including dirt paths, water, and indoor sections.
Focus announced on November 9, 2006, that 10,000 copies of TrackMania United could be bought and pre-loaded online then activated from November 16, 2006 onwards. The game became available in retail outlets in France, Canada, Australia, Belgium and the French-speaking part of Switzerland later in 2006, and then from February 23, 2007 in all other regions.
The game is available in the UK and was made available in the US via download for $49.99 on March 23, 2007 and $39.99 on April 17, 2007. As of September 7, 2007, the game is available for $29.95. It was made available for pre-order and pre-load on Steam on June 7, 2007 and unlocked on June 14, 2007.
Players who previously purchased TrackMania or TrackMania: Sunrise can earn a daily copper bonus in TrackMania United by registering their product keys through the game.
Trackmania United Forever is an updated version of Trackmania United featuring seven environments and an all-new mediatracker. It was published by Focus Home Interactive and developed by Nadeo and has a similar layout to Trackmania Nations Forever. Four main modes are available: "Race", "Stunt", "Platform", and "Puzzle" as well as all the tracks from Trackmania Nations Forever.