Hi! New here, but enjoying the great site. I was playing RRT 1 a lot, actually often having the problem of money flowing faster in than I could spend it reasonable, and loosing it (as the game could handle only 32.000.000, 32 trains etc..) :) I enjoy RRT 2 a lot too, and play it now and then (if time allows). I also prefer it too RRT3, as the economic model is better. However, there is one thing which is annoying in RRT2, the fact that you cannot build tunnels. I know that some of the maps are just relying on this, to create a goal worth to achieve, but often it is just annoying. Tunnels could just be made hideously expensive (as they were in RRT 1, where you theoretically could build a base-tunnel through the alps, but your company died of building and maintenance cost for this monster), but at least short tunnels should be available. SO the question: was there ever a fan-written (source code) modification of the game, allowing for tunnel building?