Maybe not a good place to start the topic, but I get this idea when I found much difficulty to develop infrastructure of TpF -- many thing is not supported, and the way to build the world is not so intitultive..
So if the modertor find a better place to discusse it, please kindly move it.
In my idea I want to build a game with following charateristics:
1. Able to simulate more kinds of terrain, like rivers, like vertial walls, like cliffs, like making a hold into the terrain
2. Build incrementally, a station or other infrastructure should be built up by compenoennt by compennent, so you can easily extends your station by adding different platforms, and the player should be able to plan the internal/underground paths by themselves
3. Easy to convert vehicule mods from Tpf
4. Basic interlocking logic simulation (that's my real world job)
5. Timetable maybe
Some other points I am not sure
1. If it would be a good idea to not to have the production/consomation chain in the game?
2. How to deal with cities growth and people in it? I don't any algorithm about it, and UG masters it well, and maybe TpF is the only game did it well.
3. So may a miniature game without people and production? Just let train come and go??
3. Shunting yard? I know little about it.
4. A train operator trained with machine learning? and train driver too?
5. VR support?
What is sure:
* Not a train driving game
I am going to start with Unity3D engine, I know little about making a game (I know a lot about making an application), but Unity3D is generally based on .net so I can use the language I prefer, C# and F#, I work with C++ and OCaml in my job but I think use C++ to make a game, maybe performanent but too much things to deal with in details and will take my too much time)
I want to hear your opinions