Chris Evans from The Reticule talks with Doug McConkey from Dovetail Games about Train Simulator 2015, Dovetail Games Fishing and the new match up with Microsoft's Flight Simulator franchise. Just one of the question and answers was:
Chris – What have you done with Microsoft Flight Simulator X to make it ready for the launch on Steam?
Doug – We have removed the need for CD keys and added support for the Steam system. Although this sounds simple, it actually involved recompiling and rebuilding the entire code base, which was quite a task given that the game code had not been touched for six years. We are now looking at the online functionality that was previously provided in FSX by GameSpy and seeing if we can provide these features in other ways in the Steam edition.