https://4-ch.net/dqn/kareha.pl/1687865743/942
Deadlands and Call of Cthulhu both have adventures on a train that are among their most notable offerings. There is also an extensive fan supplement to Castles & Crusades that has a "conversion" table including FF6 and I just think that's real neat.
I have never played a TTRPG and I never will be able to keep at one if I ever start due to my sleep disorder (unless solo counts... doesn't to me...). But I got like 25% of the way into a large-scale archive organizing effort before burning out earlier this year!