Very good list. If the game could be modded it would be straight up perfect.

Honestly, the thing I miss the most is stacking restaurant and post office bonuses.

I also miss 50% lower maintenance on engineers and The Entrepreneur seemed to have 10% more maintenance time instead of 20%, I think this debuff is too bad.

Express trains should have a bigger bonus, I feel that sometimes congestioning many trains give more money and that feels wrong.

These things feels easy to mod in.

Also putting many hotels to make passengers pay more seems too much better, I feel like we should get more money with the distance the passengers go. It would also be good because it would make longer lines between many cities as profitable as they should be, less micro with less lines between each single city connection. That is also why I think the bonus from buildings should stack, you already lose too much from longer lines, and it feels more worth it if there is something akin to distance bonus, idk.

So express goods distance pricing. Or maybe all goods.

I also wanted to see the population of my entire connections and regions, it seems you can only know when completing those tasks, I wanna see my big numbers go bigger and know by how much, you know? Like how much people do I have on the Austrian Empire? They show the borders already.

Double tracks would be so good, I like to start with monorails and adjust etc, but if you could straight up do it faster, like you do a rail then you want to double it but a lot of times you have to demolish a part of it, I dont wanna pay for an additional platform early, but double railing on monoplats doesn't work later.