Amount of Trains

[eric_22]

How many trains can you have running in one save game?

If having loads, will the game run more slow?

[Walter1940]

I've had games with over 100 trains on a map. And the game still runs without stutter or dropouts.
But I don't know how many are maximum possible.

[Emperor Darth Sidious]

Maybe you should ask Zimmlock, he had more then 100 trains running at the same time in his Serpent-scenario once...

[Zakos]

I don't have a great computer, so I can tell you that yes, the game may run slowly when you have a lot of trains on the map (especially if you're playing with the AI).