Can someone do a mod to remove RR's

[Colwyn]

But without effecting other things in the game if removing the advance will do that, ie may need to create a sub advance and modify tech tree if needed.

This would be a good mod for those wanting to play a game without unlimited movement.

[Jon Shafer]

Hmmmm... I dunno about that. The only pre-requisites for being able to lay RRs is having both coal and iron. Unfortunately, the only way you could get rid of RRs is by to get rid of one of those two resources.

[Vlad Antlerkov]

One possibility:

1) Create a new resource.
2) Set it so that the resource will not appear on any terrain (or on Ocean, which would effectively do the same thing).
3) Change the preq resources for rails from Iron and Coal to the new resource and something else.

Did a quick test, and the resource appeared nowhere.

Any other ideas?

[Sheik]

Cant you just make sure that none of the workers have the lay railroad ability?

[Jon Shafer]

If you turn off any of the worker flags, the AI won't use them.