The Game Census
Hmmsim Metro cover art

Hmmsim Metro

Jeminie Interactive · 2021-06-25

Steam

IndieSimulationEarly Access

Modes: Single player

Releases: Jun 25, 2021 (PC (Microsoft Windows))

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!

27
playing now
91%
positive of 1.8k reviews
Very Positive
steam rating
50,000–100,000
owners (SteamSpy est.)
platinum
deck/linux tier (ProtonDB)
$19.99
steam price (US)

27 players in-game as of 2026-08-30 07:00 UTC (census sample)

Hmmsim Metro is a simulation game on the Seoul Subway Line 1. The game was released in Early Access in June 2021, and officially released in December 2021.

Health check

Healthy
  • · 27 players in-game at the last census sample.
  • · 219 reviews in the last 8 weeks (~27/week).
  • · Review velocity up 54% vs the prior 8 weeks.
  • · Top 18% of 17,990 Indie games in the census by review count.
Estimated sales: 37k–82k copies

Review-multiple estimate from 1,830 total reviews — how this is computed.

All-time low: $19.99 at Steam (2021-06-25)via IsThereAnyDeal

Review momentum

PositiveNegative
18318320212026Week of 2021-06-01: 145 positiveWeek of 2021-06-01: 18 negativeWeek of 2021-07-01: 183 positiveWeek of 2021-07-01: 6 negativeWeek of 2021-08-01: 67 positiveWeek of 2021-08-01: 2 negativeWeek of 2021-09-01: 39 positiveWeek of 2021-09-01: 2 negativeWeek of 2021-10-01: 36 positiveWeek of 2021-10-01: 1 negativeWeek of 2021-11-01: 57 positiveWeek of 2021-11-01: 9 negativeWeek of 2021-12-01: 35 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 41 positiveWeek of 2022-01-01: 3 negativeWeek of 2022-02-01: 26 positiveWeek of 2022-02-01: 2 negativeWeek of 2022-03-01: 27 positiveWeek of 2022-03-01: 2 negativeWeek of 2022-04-01: 26 positiveWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 30 positiveWeek of 2022-05-01: 2 negativeWeek of 2022-06-01: 30 positiveWeek of 2022-06-01: 6 negativeWeek of 2022-07-01: 26 positiveWeek of 2022-07-01: 1 negativeWeek of 2022-08-01: 23 positiveWeek of 2022-08-01: 5 negativeWeek of 2022-09-01: 22 positiveWeek of 2022-09-01: 8 negativeWeek of 2022-10-01: 25 positiveWeek of 2022-10-01: 4 negativeWeek of 2022-11-01: 28 positiveWeek of 2022-11-01: 1 negativeWeek of 2022-12-01: 32 positiveWeek of 2022-12-01: 2 negativeWeek of 2023-01-01: 36 positiveWeek of 2023-01-01: 2 negativeWeek of 2023-02-01: 21 positiveWeek of 2023-02-01: 8 negativeWeek of 2023-03-01: 17 positiveWeek of 2023-03-01: 2 negativeWeek of 2023-04-01: 17 positiveWeek of 2023-04-01: 2 negativeWeek of 2023-05-01: 13 positiveWeek of 2023-06-01: 17 positiveWeek of 2023-06-01: 2 negativeWeek of 2023-07-01: 21 positiveWeek of 2023-07-01: 4 negativeWeek of 2023-08-01: 22 positiveWeek of 2023-08-01: 4 negativeWeek of 2023-09-01: 12 positiveWeek of 2023-09-01: 7 negativeWeek of 2023-10-01: 19 positiveWeek of 2023-11-01: 20 positiveWeek of 2023-11-01: 3 negativeWeek of 2023-12-01: 22 positiveWeek of 2023-12-01: 8 negativeWeek of 2024-01-01: 23 positiveWeek of 2024-01-01: 3 negativeWeek of 2024-02-01: 23 positiveWeek of 2024-02-01: 5 negativeWeek of 2024-03-01: 10 positiveWeek of 2024-03-01: 2 negativeWeek of 2024-04-01: 15 positiveWeek of 2024-04-01: 1 negativeWeek of 2024-05-01: 31 positiveWeek of 2024-05-01: 3 negativeWeek of 2024-06-01: 14 positiveWeek of 2024-06-01: 2 negativeWeek of 2024-07-01: 20 positiveWeek of 2024-07-01: 4 negativeWeek of 2024-08-01: 15 positiveWeek of 2024-08-01: 2 negativeWeek of 2024-09-01: 22 positiveWeek of 2024-09-01: 2 negativeWeek of 2024-10-01: 16 positiveWeek of 2024-10-01: 3 negativeWeek of 2024-11-01: 12 positiveWeek of 2024-11-01: 3 negativeWeek of 2024-12-01: 13 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 29 positiveWeek of 2025-01-01: 2 negativeWeek of 2025-02-01: 32 positiveWeek of 2025-02-01: 2 negativeWeek of 2025-03-01: 18 positiveWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 11 positiveWeek of 2025-04-01: 3 negativeWeek of 2025-05-01: 17 positiveWeek of 2025-05-01: 1 negativeWeek of 2025-06-01: 13 positiveWeek of 2025-06-01: 2 negativeWeek of 2025-07-01: 15 positiveWeek of 2025-08-01: 19 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-09-01: 13 positiveWeek of 2025-10-01: 23 positiveWeek of 2025-10-01: 7 negativeWeek of 2025-11-01: 17 positiveWeek of 2025-12-01: 12 positiveWeek of 2025-12-01: 3 negativeWeek of 2026-01-01: 41 positiveWeek of 2026-01-01: 1 negativeWeek of 2026-02-01: 29 positiveWeek of 2026-03-01: 19 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 28 positiveWeek of 2026-05-01: 33 positiveWeek of 2026-05-01: 4 negativeWeek of 2026-06-01: 19 positiveWeek of 2026-06-01: 3 negativeWeek of 2026-07-01: 23 positiveWeek of 2026-07-01: 3 negativeWeek of 2026-08-01: 13 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

3622026-08-11 23:00 — 8 players2026-08-12 14:00 — 14 players2026-08-13 06:00 — 27 players2026-08-13 22:00 — 6 players2026-08-14 14:00 — 26 players2026-08-15 06:00 — 34 players2026-08-15 21:00 — 5 players2026-08-16 13:00 — 26 players2026-08-17 05:00 — 36 players2026-08-17 21:00 — 4 players2026-08-18 13:00 — 26 players2026-08-19 02:00 — 7 players2026-08-19 17:00 — 5 players2026-08-20 09:00 — 21 players2026-08-21 01:00 — 7 players2026-08-21 17:00 — 16 players2026-08-22 08:00 — 36 players2026-08-23 00:00 — 11 players2026-08-23 16:00 — 10 players2026-08-24 08:00 — 15 players2026-08-25 00:00 — 6 players2026-08-25 15:00 — 14 players2026-08-26 08:00 — 16 players2026-08-27 00:00 — 2 players2026-08-27 16:00 — 10 players2026-08-28 08:00 — 24 players2026-08-28 23:00 — 10 players2026-08-29 15:00 — 17 players2026-08-30 07:00 — 27 players
Concurrent players, hourly average, last 30 days (census samples).

Attention

1212026-06-01 — 6 pageviews2026-06-04 — 12 pageviews2026-06-07 — 5 pageviews2026-06-10 — 4 pageviews2026-06-13 — 8 pageviews2026-06-16 — 1 pageviews2026-06-19 — 5 pageviews2026-06-22 — 4 pageviews2026-06-25 — 9 pageviews2026-06-28 — 3 pageviews2026-07-01 — 5 pageviews2026-07-04 — 12 pageviews2026-07-07 — 4 pageviews2026-07-10 — 6 pageviews2026-07-13 — 10 pageviews2026-07-16 — 4 pageviews2026-07-19 — 5 pageviews2026-07-22 — 4 pageviews2026-07-25 — 5 pageviews2026-07-28 — 5 pageviews2026-07-31 — 4 pageviews2026-08-03 — 6 pageviews2026-08-06 — 2 pageviews2026-08-09 — 7 pageviews2026-08-12 — 6 pageviews2026-08-15 — 8 pageviews2026-08-18 — 4 pageviews2026-08-21 — 3 pageviews2026-08-24 — 6 pageviews2026-08-27 — 4 pageviews2026-08-29 — 2 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Details

WindowsSingle-playerFamily Sharing

2 supported languages: Korean, English

Player tags

3DIndieTrainsDrivingPhysicsRealisticSimulationEarly AccessSingleplayerImmersive Sim

Census log

Computed from census-recorded observations only — dates are observation dates.

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Similarity via IGDB.

Wikipedia ↗Official site ↗