The Game Census
20,000 Miles Under the Sea cover art

20,000 Miles Under the Sea

CreaTeam · 2020-07-27

Steam

IndieSimulation

Modes: Single player · Perspectives: First person

Releases: Jul 27, 2020 (PC (Microsoft Windows))

Become a fearless underwater explorer and reach the bottom of The Mariana Trench to win 20,000* REAL DOLLARS!

20,000 Miles Under the Sea is an Indie, Simulation game released in 2020, free-to-play, with an owner estimate of 50,000 .. 100,000 and a Mostly Negative review sentiment (39% of 157 reviews).

0
playing now
39%
positive of 157 reviews
Mostly Negative
steam's rating (official)
50,000–100,000
owners (SteamSpy est.)
pending
deck/linux tier (ProtonDB)
Unknown
Steam Deck (Valve)
SteamOS: 0
Free
steam price (US)

0 players in-game as of 2026-10-14 19:00 UTC (census sample)

Put on your suit designed especially for deep sea diving and get ready for the longest descent in your life. This is a simple idle horror game, and all that is required of you is to observe the life of the underwater world and wait. If you get tired - you can minimize the game and continue to go down, doing other things. But don’t forget that you are not alone - a terrible creature inhabit this abyss. If you’re too scared to meet this monster you can tap out any time you like and set a name mark that will be seen by players from all over the world who have reached this depth. How deep can y(Storyline via IGDB)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 11 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 45% vs the prior 8 weeks.
  • · Top 29% of 49,548 Indie games in the census by review count.

Health tier since 2026-09-01

Review momentum

PositiveNegative
151520202026Week of 2020-07-01: 11 positiveWeek of 2020-07-01: 15 negativeWeek of 2020-08-01: 8 positiveWeek of 2020-08-01: 13 negativeWeek of 2020-09-01: 5 negativeWeek of 2020-10-01: 1 positiveWeek of 2020-10-01: 4 negativeWeek of 2020-11-01: 2 positiveWeek of 2020-11-01: 3 negativeWeek of 2020-12-01: 2 positiveWeek of 2020-12-01: 1 negativeWeek of 2021-01-01: 1 positiveWeek of 2021-01-01: 3 negativeWeek of 2021-02-01: 1 negativeWeek of 2021-05-01: 1 negativeWeek of 2021-06-01: 1 positiveWeek of 2021-07-01: 1 positiveWeek of 2021-07-01: 2 negativeWeek of 2021-08-01: 1 positiveWeek of 2021-08-01: 1 negativeWeek of 2021-09-01: 2 negativeWeek of 2021-10-01: 2 negativeWeek of 2021-11-01: 1 negativeWeek of 2022-02-01: 1 positiveWeek of 2022-02-01: 1 negativeWeek of 2022-03-01: 2 negativeWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 3 positiveWeek of 2022-06-01: 1 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 1 negativeWeek of 2022-08-01: 1 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 2 negativeWeek of 2022-10-01: 1 positiveWeek of 2022-11-01: 1 negativeWeek of 2022-12-01: 2 negativeWeek of 2023-01-01: 1 positiveWeek of 2023-02-01: 1 positiveWeek of 2023-02-01: 2 negativeWeek of 2023-03-01: 1 positiveWeek of 2023-03-01: 2 negativeWeek of 2023-04-01: 1 positiveWeek of 2023-04-01: 3 negativeWeek of 2023-05-01: 2 positiveWeek of 2023-05-01: 2 negativeWeek of 2023-06-01: 1 positiveWeek of 2023-07-01: 2 negativeWeek of 2023-08-01: 1 negativeWeek of 2023-09-01: 1 positiveWeek of 2023-10-01: 1 positiveWeek of 2023-10-01: 2 negativeWeek of 2023-11-01: 2 positiveWeek of 2023-12-01: 1 negativeWeek of 2024-01-01: 1 negativeWeek of 2024-02-01: 1 negativeWeek of 2024-05-01: 1 negativeWeek of 2024-06-01: 1 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 1 positiveWeek of 2024-08-01: 3 positiveWeek of 2024-08-01: 2 negativeWeek of 2024-09-01: 2 positiveWeek of 2024-10-01: 1 positiveWeek of 2024-11-01: 1 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-02-01: 1 positiveWeek of 2025-03-01: 2 positiveWeek of 2025-03-01: 3 negativeWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 1 negativeWeek of 2025-06-01: 2 positiveWeek of 2025-06-01: 2 negativeWeek of 2025-07-01: 1 positiveWeek of 2025-07-01: 1 negativeWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 1 positiveWeek of 2025-09-01: 2 negativeWeek of 2025-11-01: 1 positiveWeek of 2025-12-01: 1 positiveWeek of 2025-12-01: 2 negativeWeek of 2026-01-01: 1 negativeWeek of 2026-03-01: 1 positiveWeek of 2026-04-01: 1 positiveWeek of 2026-06-01: 1 positiveWeek of 2026-07-01: 1 positiveWeek of 2026-08-01: 1 positiveWeek of 2026-08-01: 1 negativeWeek of 2026-09-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

102026-09-15 04:00 — 0 players2026-09-16 12:00 — 0 players2026-09-17 20:00 — 0 players2026-09-19 03:00 — 0 players2026-09-20 11:00 — 1 players2026-09-21 19:00 — 0 players2026-09-23 02:00 — 0 players2026-09-24 10:00 — 0 players2026-09-25 17:00 — 0 players2026-09-27 01:00 — 0 players2026-09-28 08:00 — 0 players2026-09-29 16:00 — 0 players2026-09-30 23:00 — 0 players2026-10-02 07:00 — 0 players2026-10-03 14:00 — 0 players2026-10-04 22:00 — 0 players2026-10-06 06:00 — 0 players2026-10-07 13:00 — 0 players2026-10-08 21:00 — 0 players2026-10-10 04:00 — 0 players2026-10-11 12:00 — 0 players2026-10-12 20:00 — 0 players2026-10-14 03:00 — 0 players2026-10-14 19:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Completion

28
achievements tracked
38%
earned "Lepomis microlophus"
37.1%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerSteam AchievementsSteam LeaderboardsFamily Sharing1 DLC

16 supported languages: English, French, Italian, German, Spanish - Spain, Traditional Chinese, Simplified Chinese, Korean, Dutch, Polish, Portuguese - Portugal, Russian…

Post-launch support: 1 DLC released, first 2020-07-27 (Steam store data)

Player tags

3DDarkIdlerIndieHorrorBeautifulRealisticSubmarineSimulationUnderwater

Census log

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

Players also track

Another Brick in The MallVisageMashinkyCooking SimulatorAncient CitiesBronze Age - HD EditionScornThe Watson-Scott Test

Similarity via IGDB.