The re-launch attempt at Microsoft's second version of the "Train Simulator" project was officially announced on . This time around the simulation was instead being made in-house by Microsoft's Aces Game Studio, which was most known for its successful "Microsoft Flight Simulator" series line, as a part of the "Games for Windows" initiative. The simulation leveraged most of the existing core components of "Microsoft Flight Simulator X's" platform, thus providing an entire earth model in which to play from, and was planned to be compatible with both Windows Vista and Windows XP. A post on 'The Little Wheel Goes in Back' blog, written by one of the developers, confirmed the working title was 'Train Simulator 2'.