It was a pretty cool game. Not as good as e. g. civilisation but nonetheless fun. I even managed to make profits with my railroads.

Young folks can use dosbox etc... but it just does not feel the same compared to how it was "originally". I could not get myself to want to play raildroad tycoon again; I found it easy to play games such as civilization or UFO: Enemy Unknown (oddly enough the first part is more playable than the second part here).

OpenXcom adds a whole heap of wonderful conveniences to UFO/X-Com. It's probably my favourite open source game engine clone thing.

https://openxcom.org/

Of the games you mention it's civilization that's kind of hard to replay for me. RR tycoon had fewer, worse, iterations. All Xcom games are super replayable with the exception of Xcom 3. Colonization is super replayable and it's only reiteration based on Civ 4 is not worth it.