Steam app 1591420 · updated 12 Sep 2026, 21:27 UTC
Line 1, the most complicated subway in Seoul, is now coming in PC version. You can feel high immersion with the graphics that realize the actual Seoul scenery, the train driving sound, and the realistic train driving system. Experience the operation of the Seoul subway!
562 hourly samples, with the daily peak drawn over them. Weekends are shaded.
64 months, June 2021 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 327 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 235 hourly samples. Each dip is a night. Weekends are shaded.
Hmmsim Metro was released on 25 Jun, 2021.
| Language | Full audio |
|---|---|
| Korean | |
| English |
A blank audio cell means full audio was not marked in the returned language list.
38 developer announcements, Jun 2021 to Feb 2026 · times in UTC
Hello,This update includes the addition of ray tracing settings and a viewing mode.Ray TracingA ray tracing option has been added to significantly improve overall lighting and shadow quality.This feature only works on GPUs that support…
ddc01137Hello.In this update, passengers and CCTV have been added.PassengersMoving passengers have been added to stations and trains. Passengers board or alight depending on the situation, showing different levels of crowding based on time of day…
ddc01137Hello,This update finally introduces weather.Weather Eight types of weather environments have been added, ranging from clear skies to cloudy skies, light rain, heavy rain, and fog. Various weather conditions have been applied to the default…
ddc01137Hello,Weather effects are finally coming to Hmmsim Metro!From clear skies gradually turning cloudy, to light rain and even heavy downpours — a variety of atmospheric conditions will be available.Take a sneak peek at what it's like to…
ddc01137Hello,This update includes a redesign of the train circuit, camera improvements, and performance enhancements. Train Circuit The entire circuit of the train has been redesigned to resemble the actual train more closely. The simplified logic…
ddc01137Hello, In this update, the route has been extended to Gwangmyeong Depot, and the old livery trains are added again. {STEAM_CLAN_IMAGE}/40325742/ae8ec111229936e914dc73943978c7ad8c43e039.png - Gwangmyeong Depot The section from Gwangmyeong to…
ddc01137Hello, In this update, the line has been extended to Gwangmyeong Station, and shuttle trains have been added. {STEAM_CLAN_IMAGE}/40325742/3ea4df1655046bfcb83f0c7f22fcad130b8a265b.png - Gwangmyeong Extension The line has been extended from…
ddc01137{STEAM_CLAN_IMAGE}/40325742/5dfe19412c9561dce9056a8a704644958042d077.png {STEAM_CLAN_IMAGE}/40325742/581b727b457745b901207cf680b5820ac349ee32.png {STEAM_CLAN_IMAGE}/40325742/dccf41eccae13803c1b58a15e2100a7090e938db.png…
ddc01137Hello, First of all, We apologize for not updating you in a long time. Over the course of several beta updates, we’ve made significant structural improvements. There are many updates, and We will organize them to introduce to you.…
ddc01137Hello. In this update, the existing 2nd generation train has been remodeled and the details have been greatly improved. Klaxon pedals have also been added to the remodeled trains, and headlights and connector details have been improved.…
ddc01137Hello. In this update, the existing 3rd generation two-handle train has been remodeled and the details have been greatly improved. In addition, timetables were added only for 3rd generation trains. We are continuing to remodel the existing…
ddc01137Hello. In this update, a 3rd generation one-handle train is added. {STEAM_CLAN_IMAGE}/40325742/3efcfab75d22218ad13b8a6542310549687cb1a8.png {STEAM_CLAN_IMAGE}/40325742/7f888f2a5a9b1f6a1ec354431da6f9703a7faf33.png Key operation - The…
ddc01137Hello. This patch brings controller support and fixes a few bugs. {STEAM_CLAN_IMAGE}/40325742/2c6d93684e93b53ccdfc1fd158b2c1257c3b1f2d.png Controller support - Mini PTS A switch : ELBCOS B switch : ADS - Master Controller for Train…
ddc01137Hello. We apologize for the long delay in the update. This update adds a switchboard and allows trains to start in their initial state. {STEAM_CLAN_IMAGE}/40325742/3d9570b23ab7894b772a191f0a24db7381132812.png - Startup option A new startup…
ddc01137Hello. In this update, Seoul Metro trains are finally added. - Seoul Metro train {STEAM_CLAN_IMAGE}/40325742/07234761fc623a1ede37f266382789b8cf941d28.png The virtual logo of "Seoul Railroad Corporation" is used for Seoul Metro train. There…
ddc01137Hello. We are making some gameplay improvements through this patch. All settings will be reset in this patch. Check the settings menu first before launching the game. - Camera improvements The most requested camera improvements have been…
ddc01137Hello. Through this patch, we will first improve the performance. It required major structural changes inside the game to improve performance and was time consuming. Fortunately, it turned out to be what we had hoped for. Highlights of this…
ddc01137Hello. It's been 7 months since we launched Early Access. In the meantime, thanks to your feedback, we have made great progress. In the meantime, we have focused on extending the line. The current length of the line has been doubled when it…
ddc01137Hello. This patch adds background detail and fixes some bugs. {STEAM_CLAN_IMAGE}/40325742/1a16716a96785e61ca3d32b9b2ef6a2284b01a65.png Update details - Added freight cars at Kwangwoon University Station and trains at Imun depot - Added Exit…
ddc01137Hello. Finally, the extension to Kwangwoon University Station has been completed. {STEAM_CLAN_IMAGE}/40325742/611d8653ed3bd837aa787c05ad360aa1de765ee0.png Update details - The map has been extended. (Sinimun~Kwangwoon University, about…
ddc01137Hello. In this patch, the map is extended to Seokgye Station with some performance improvements. The performance improvement with this patch will not be huge. After the extension to Kwangwoon University Station is completed, we plan to…
ddc01137{STEAM_CLAN_IMAGE}/40325742/14caef789b3835442a8883ebf7e2954d71210634.png Hello. Happy new year everyone. We are sorry to inform you that the Kwangwoon University extension update has been delayed a bit. After the previous update, we found a…
ddc01137Hello. As previously mentioned, the additional line extension will be divided into two rounds. Through this update, it will be extended to Sinimun Station first. The extension to Kwangwoon University Station is expected to take another two…
ddc01137Hello. We'll bring you news after a long time. {STEAM_CLAN_IMAGE}/40325742/fa5e15f3de1b46e4e38ff15c235b1ce1a47b7ac2.png {STEAM_CLAN_IMAGE}/40325742/3b64a0205c765c844d2d5a2e365fbc0d85dbf5b6.png…
ddc01137Hello. In this patch, the Guro depot scenarios is finally added. {STEAM_CLAN_IMAGE}/40325742/5ba906ac08dbf375728bfd18cc4a2e5b6e6f1127.png 4 depot scenarios (K809, K814, K1403, K1406) are prepared. The destination indicator has also been…
ddc01137Hello. Are you enjoying the 2nd update? Several bugs reported after the update have been fixed in this patch. And I added an interesting feature. {STEAM_CLAN_IMAGE}/40325742/c5a8ff242bf611a8e94cd348e7b5ffa0dbf92acd.png Destination and train…
ddc01137Hello. The update took too long. We apologize again to those who have been waiting. Many scenarios have been added and changed in this update. We recommend that you play the game again from the beginning. Here are some important things to…
ddc01137{STEAM_CLAN_IMAGE}/40325742/0b70a11af8b444fa6fc377b2246c0e85901eb2a9.png {STEAM_CLAN_IMAGE}/40325742/039702b966e318be1a2377f8ce9618971778ae5b.png {STEAM_CLAN_IMAGE}/40325742/1d0bc751d61ddc720ed961481f8bba46c752f31f.png…
ddc01137Hello. Now the background work is almost in the final stages. This time, We will show you the background work situation near Gasan Digital Complex and Geumcheon-gu Office Station.…
ddc01137Hello. In the meantime, most of the news has revealed the map development process. So, this time, we prepared news about trains in the game, which was lacking in news. Future updates will include changes to trains as well as route…
ddc01137Hello. As we announced last week, we would like to reveal the details of the next update. As mentioned, the section will be extended to Geumcheon-gu Office Station and more scenarios will be added accordingly. In doing so, we decided to…
ddc01137{STEAM_CLAN_IMAGE}/40325742/dbf019a6740c510cbcff5b37341560bfb825c4d4.png {STEAM_CLAN_IMAGE}/40325742/80b993bb38c94d519e8ab38d4cf37d4fafc345b6.png {STEAM_CLAN_IMAGE}/40325742/fa4b2a8ef5826a2025ea53f2a25718a2e79c9d3f.png…
ddc01137Hello. Finally, the content update is in progress. Thank you for waiting. Please refer to the roadmap for the update schedule! 1st Update Details - Added new train - Added physics effects (not yet complete and needs improvement) - Added…
ddc01137Hello. This patch has improved game settings and several other issues. 3rd Patch Details - Added resolution, frame limit, audio settings - Add distance to TGIS - Improved key input (You can move the throttle or brake by holding down the…
Patch notesHello. There was a problem that was urgently fixed in the second patch, so we had to patch it again. 2nd patch fixed details - Added tutorial language (English, Japanese) - Fix Tab key (Tab key can now be used in game) - Relocation of PSD…
Patch notesSorry for the late patch planned for the weekend. We tried to improve a lot in this patch, but as development is a bit delayed, we want to divide the patch once more. 2nd patch details - Add stop (10) sign - Relocation of PSD monitors in…
Patch notesHmmsim Metro Are you all having fun? We are collecting a lot of errors and feedback while monitoring after launch. Among them, we will try to patch those that are deemed urgent first. Patch details - Fixed fatal ATS signal bug (not all…
Patch notesHmmsim Metro is finally out in Early Access. Buy now! We recommend that you drive according to your arrival time whenever possible. You can meet other trains in their most beautiful form when running on time. After normal operation, the…
ddc01137What Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| Launch | HmmsimMetro.exe | windows 64 | ||
| Launch | HmmsimMetro.app | macos |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG