5 stars: This really is a great subway simulator. It's pretty simple with only two line you can ride, but the sound effects and the stations are amazing. But could maybe the modifications for the train be made a little less expensive? Because right now you would have to play 1.5 hours for one upgrade. Also, maybe give us the ability to buy the second train without real money.
4 stars: This is the only metro game that is realistic, but I would only give this a 4 stars as it lacks features. for example this game should include what the next station is and how far it is in the top bar, menu is pretty boring, also buying or upgrading things should not include real money but solely by just playing the game, there are more improvements that should be made.
4 stars: The best rail Simulator I've found, but can still be improved. AI trains would improve realism. More controls - selection of buttons for announcements. Station announcements should fade when entering the tunnel. Inside carriage camera view, with opening doors and passengers entering and exiting. Visible speed limits in tunnels. Should there not be green and red signals?
3 stars: An ok game but has a few bugs. I sometimes get a penalty for missing a station even though I clearly did not pass the station stop marker. Eventually, I get kicked out of the game due to having too many penalties because of that bug. Please fix this or remove the penalty system. Thank You.
2 stars: Graphics and all other sections ...