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Hmmsim Legacy

Train Simulator

Ratings

Age

4+

Category

Games

Languages

English

Hmmsim 2 is the sequel to the highly-regarded train simulation game, featuring significant upgrades in graphics and functionality. Players take control of trains on Seoul's iconic Line 2 and Line 7, navigating realistic urban environments. The game stands out by allowing users to import external routes through BVE Trainsim files, providing endless replayability. With a focused interface and authentic sound design, it delivers a professional-grade simulation experience on a mobile device.

Dinsun Expert Review

Our Expert Score

85/100

Hmmsim 2 is a surprisingly robust train simulator for mobile. It captures the technical feel of the Seoul subway system with impressive detail. The graphics are a significant step up from the first game, offering much smoother framerates and cleaner textures.

What I love most is the ability to import external routes. While the base game is great, the community content keeps it alive. The controls are intuitive—balancing the master controller to hit your stop markers perfectly is rewarding and genuinely relaxing. If you’re a railfan looking for a mobile sim that doesn't feel like a toy, this is it.

Dinsun reviewed on: Tue Feb 24 2026

Features

1

Advanced 3D graphics and smooth performance

2

Realistic Seoul Subway Line 2 and 7 routes

3

BVE Trainsim route import support

4

Authentic train sounds and physics

5

Intuitive Master Controller interface

Tips & Walkthrough

Gameplays

Screenshot

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Q&A

Yes, Hmmsim 2 supports the addition of external routes created for BVE Trainsim via file importation.

Ratings & Reviews

Awesome
Wed Feb 19 2020 B. Driva

It’s a great sim, and I love it, however, like everyone else, I do have a few suggestions. First, I would like to run the whole route, actual running time. Also, instead of just starting off at station, what about adding a feature where you pick your train up or put it together at a rail yard or maintenance facility. I would also love to see more rail traffic to add on to the realism and more signal systems that you have to obey. What about commuters? It’ll be kickass to actually have people riding. More route options, even if you have to pay for it, I know I would. Different times of day and night running would be so great, and realistic lighting, also completing round trips for a route that a player decides to run. I know you could only do Seoul subway routes, but why not add the entire system and features where you pick which train sets to run for whatever Seoul subway route you desire? If you can do that, this would be the best mobile sim game ever. Hell, I’d pay for a monthly or yearly subscription just to play it and have add-ons for routes and updates. Think about it developers. Especially if you have a community and players interacting with each other, you could very well be a 5 star developer. Then, as you grow, you grow your product, such as subway routes from Tokyo, Hong Kong, and other major cities subway systems in Asia. Then, as you grow, you target audiences from Europe and North America by creating sims that have not been touched by World of Subways or Train Simulator, like the Chicago CTA (All Lines), the DC Metro, Los Angeles Metro, MBTA, San Juan, etc. The more you add, the more people would pay, and there is your profit. Trust me, you would have customers for life especially as you add more realism and options to the sim. I know it’s a lot, but plenty to think about. Just sayin

The Best Train Sim Out There, But BVE Addons And Conversions Make Some Bugs
Sun May 27 2018 Close, crash.

I cannot stress how awesome the graphics are on the default lines 2 and 7, and even most of the BVE add on route graphic look so much better than even the actual BVE on PC! But, there are a few slight problems when it comes to converting to Hmmsim 2 format. Firstly, a lot of transparency seems to go away even with the use of SetDecalTransparentColor. This causes the converted trains (especially on New York lines) to have unnecessary opaque textures, making the train look odd. Next, sometimes the ground sticks into the tracks on some lines, I don’t know the cause. Finally, signals on converted routes don’t seem to load properly, as I usually get an oversized rectangle, also possibly due to the transparency issue. Aside from all of these minor issues, this is the absolute best train sim to use BVE addons, even the best mobile train sim ever, period! Edit: I forgot to say how simple it is to convert from BVE to Hmmsim! It is so easy, even with iOS! Just download the converter on your website, and transfer the converted .zip file on to your phone!

I don’t know how to get openbve
Tue Mar 06 2018 JLRockss

How do get openbve for free or update like add the l train from Canarsie To 8 Ave And 8 Ave to Canarsie and I don’t have a pc I only have a laptop my pc is slow and I tryed downloading openbve on my laptop but I need a pc so I can get the openbve train please make the update for the openbve trains for free like an a,b,c,d and more I’m really waiting for openbve trains or at least make the openbve trains for laptop please Thank you and respond about the openbve trains :) peace

Amazing!😀
Sat Jul 13 2019 Parched and penniless

This is a great train simulator game, and it is so fun. I have a few suggestions, though. First, can you add a cab view? I would like it more if you did that. Second, can you add the ability to do a round trip? Third, can you add AI trains on both directions, so that there is train traffic? Fourth, I feel like it should be easier to convert bve routes and trains. Finally, maybe you can add a couple more metro lines to choose from, maybe other countries’ train lines. These are just suggestions to make the game better, but the game is still fun anyway.

I cannot add hmmsim routes on IOS
Thu Apr 06 2023 Pleasessjejejeje

I like the game and all but there’s a slight problem, I cannot add hmmsim mta routes to iPhone even after I try downloading es file explorer and getting routes from hmmsim weebly, and when I close the app and restart the app, the routes don’t appear when the app reopens. Can you please fix this issue?

Ok
Tue Oct 03 2017 Jkaiser328

I like this game. It is very realistic and fun. The only thing that bothers me is that there are not enough train lines. Instead of Seoul subway I think it should be expanded to long distance train lines from other countries like the EuroStar and etc. This should be included for free or as an in-App purchase. This would be a very great addition.

Update ideas!
Thu Jun 11 2026 Elijah352

I love the return of one of the train apps EVER. BUT THERE’S TWO THINGS I ACTUALLY WANTED TO SEE IN THIS APP! The first one, is a new train line added to this game instead of an add-on! The second one, is a passenger cam I actually want to see the POV of one of the passengers in the station and/or in the Train!

Love
Wed Oct 07 2020 camcan1234

I love the game a lot but I would like to see added is to maybe make it more Easter to add routes because it is very hard for me to add routes like maybe have a shop where you get conies to buy routes or make something because it is hard

Some Youtube Videos found!

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