Hmmsim, the first Train Simulation game ever built in Korea, has been realized in mobile.
Hmmsim features basic route based on Seoulmetro Line 2, realized in the highest level of graphic.
Experience the metro operation.

Also, for the first time in mobile Train Simulation game, Hmmsim can add BVE Trainsim Add-Ons.
In Hmmsim, you can play BVE routes as the same
which you used to do in your PC.

This is the first mobile Train Simulator that
you can infinitely add Add-Ons depending on your preference.

See for details.

What’s New

Version 1.1.3

This app has been updated by Apple to display the Apple Watch app icon.

New Hmmsim has been released.

Ratings and Reviews

3.7 out of 5
138 Ratings

138 Ratings

DynamicD97218 ,

Great Game!

I really enjoy this train sim game! Controls are simple and the graphics are great. A few areas to improve: says I'm exceeding the speed limit when I'm not, which is confusing. I'd also like to see signals in the underground sections of the line.

fjiakdji ,

I can’t find the under ground part

Hello I am having trouble finding the underground part I’m wondering if you need to have another map overall this is a great app the game and graphics are awesome and they are very clean but if someone can answer the finding the underground part that would be great

ㅎㄹㄲㅅ ,


This game totally reminds me of the time when I was living in Korea. I just wish I could change the view. Also it'll be nice if I can download maps from the phone not through iTunes.

App Privacy

The developer, Jemin Hwang, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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