Since we're nostalging about old train software, I'll mention JB BAHN https://jbss.de/hpg_eng.htm https://jbss.de/hpg_eng.htm It's more simulator than game but

Since we're nostalging about old train software, I'll mention JB BAHN https://jbss.de/hpg_eng.htm https://jbss.de/hpg_eng.htm It's more simulator than game but I had a lot of fun with it as a kid