45		Offworld Trading Company (Windows, 2016)
43		Train Station Simulator (Windows, 2017)
43		Surviving Mars (Windows, 2018)
42		The Spatials: Galactology (Windows, 2018)
41		Star Trek: Starfleet Command (Windows, 1999)
40		Star Trek: Starfleet Command Volume II - Empires at War (Windows, 2000)
40		Star Trek: Starfleet Command - Neutral Zone (Windows, 2000)
40		The 3rd Millennium (Windows, 1998)

Notes: Games similar to Train Valley, Games like Train Valley, Flazm, Oroboro Games, Flazm, Windows, Simulation, Strategy, Tactics, Cold War, Historical Events, Sci-Fi, Futuristic, World War II, City Building, Construction Simulation, Managerial, Business Simulation, Bird's-eye view, Train, PC, Game Similarities.