The Game Census
Mercury Fallen cover art

Mercury Fallen

Nitrous Butterfly · indie.io · 2023-08-22

Steam

IndieSimulationStrategy

Modes: Single player · Perspectives: Bird view / Isometric

Releases: Oct 16, 2017 (Mac), Oct 16, 2017 (PC (Microsoft Windows))

A sci-fi colony management sim with a focus on exploration, expansion, and survival. Rebuild your underground facility, manage colonists and robots, and uncover the mysteries of an alien world light-years from Earth. Dig deep, expand across the surface, and shape your new home.

Mercury Fallen is a 2023 Indie, Simulation, and Strategy game priced at $24.99, with a Mostly Positive sentiment (77% of 321 reviews) and an estimated owner base of 20,000 .. 50,000.— census verdict as of 2026-09-20

3
playing now
77%
positive of 321 reviews
Mostly Positive
steam's rating (official)
20,000–50,000
owners (SteamSpy est.)
70/100
IGDB user rating (2 ratings)
platinum
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$24.99
steam price (US)

3 players in-game as of 2026-10-14 22:00 UTC (census sample)

After a long journey to a distant planet, your colonists were supposed to wake up and begin building their new home. But something went wrong. Their stasis capsules malfunctioned, and when they finally awakened, the underground facility they were meant to inhabit has fallen into ruin. Now, it's up to you to restore the base, manage resources, and expand across the planet’s surface—all while uncovering the secrets of this alien world and ensuring your colony thrives.(Storyline via IGDB)

Health check

Quiet
  • · 3 players in-game at the last census sample.
  • · 8 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 47% vs the prior 8 weeks.
  • · Top 20% of 49,718 Indie games in the census by review count.
Estimated sales: 6.4k–14k copies

Review-multiple estimate from 321 total reviews — how this is computed.

All-time low: $7.88 at GameBillet (2026-07-25) · bundled 4×via IsThereAnyDeal

12-month high $24.99 · on sale 102 of 124 observed days (census price snapshots)

Review momentum

PositiveNegative
141420172026Week of 2017-10-01: 12 positiveWeek of 2017-11-01: 4 positiveWeek of 2017-12-01: 5 positiveWeek of 2018-01-01: 3 positiveWeek of 2018-01-01: 1 negativeWeek of 2018-03-01: 1 positiveWeek of 2018-03-01: 1 negativeWeek of 2018-04-01: 1 positiveWeek of 2018-05-01: 2 positiveWeek of 2018-06-01: 1 negativeWeek of 2018-07-01: 1 positiveWeek of 2018-08-01: 1 positiveWeek of 2018-09-01: 1 positiveWeek of 2018-10-01: 3 positiveWeek of 2018-12-01: 1 positiveWeek of 2019-01-01: 2 positiveWeek of 2019-02-01: 3 positiveWeek of 2019-02-01: 1 negativeWeek of 2019-04-01: 1 positiveWeek of 2019-05-01: 1 positiveWeek of 2019-07-01: 2 positiveWeek of 2019-07-01: 1 negativeWeek of 2019-08-01: 1 positiveWeek of 2019-08-01: 1 negativeWeek of 2019-09-01: 1 positiveWeek of 2019-10-01: 2 positiveWeek of 2019-11-01: 3 positiveWeek of 2019-12-01: 3 positiveWeek of 2019-12-01: 2 negativeWeek of 2020-01-01: 3 positiveWeek of 2020-02-01: 8 positiveWeek of 2020-02-01: 1 negativeWeek of 2020-03-01: 3 positiveWeek of 2020-04-01: 3 positiveWeek of 2020-05-01: 2 positiveWeek of 2020-06-01: 1 positiveWeek of 2020-07-01: 14 positiveWeek of 2020-07-01: 1 negativeWeek of 2020-08-01: 2 positiveWeek of 2020-09-01: 1 positiveWeek of 2020-09-01: 1 negativeWeek of 2020-10-01: 5 positiveWeek of 2020-10-01: 1 negativeWeek of 2020-11-01: 2 positiveWeek of 2020-12-01: 2 positiveWeek of 2020-12-01: 2 negativeWeek of 2021-01-01: 2 positiveWeek of 2021-01-01: 1 negativeWeek of 2021-05-01: 1 negativeWeek of 2021-06-01: 1 positiveWeek of 2021-07-01: 2 positiveWeek of 2021-10-01: 1 positiveWeek of 2021-11-01: 1 negativeWeek of 2021-12-01: 3 positiveWeek of 2021-12-01: 1 negativeWeek of 2022-01-01: 4 positiveWeek of 2022-01-01: 1 negativeWeek of 2022-03-01: 4 positiveWeek of 2022-04-01: 3 positiveWeek of 2022-04-01: 1 negativeWeek of 2022-05-01: 1 positiveWeek of 2022-06-01: 3 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 1 positiveWeek of 2022-07-01: 3 negativeWeek of 2022-08-01: 4 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 2 positiveWeek of 2022-09-01: 1 negativeWeek of 2022-10-01: 1 positiveWeek of 2022-11-01: 2 positiveWeek of 2022-12-01: 1 positiveWeek of 2022-12-01: 1 negativeWeek of 2023-01-01: 3 positiveWeek of 2023-01-01: 1 negativeWeek of 2023-02-01: 2 positiveWeek of 2023-04-01: 1 positiveWeek of 2023-04-01: 2 negativeWeek of 2023-05-01: 2 positiveWeek of 2023-06-01: 3 positiveWeek of 2023-07-01: 2 positiveWeek of 2023-08-01: 7 positiveWeek of 2023-08-01: 1 negativeWeek of 2023-09-01: 2 positiveWeek of 2023-10-01: 5 positiveWeek of 2023-11-01: 6 positiveWeek of 2023-11-01: 1 negativeWeek of 2023-12-01: 1 positiveWeek of 2023-12-01: 1 negativeWeek of 2024-01-01: 3 positiveWeek of 2024-01-01: 2 negativeWeek of 2024-02-01: 6 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-03-01: 2 positiveWeek of 2024-03-01: 1 negativeWeek of 2024-04-01: 3 positiveWeek of 2024-04-01: 4 negativeWeek of 2024-05-01: 1 positiveWeek of 2024-05-01: 1 negativeWeek of 2024-06-01: 2 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 3 positiveWeek of 2024-08-01: 1 negativeWeek of 2024-09-01: 2 positiveWeek of 2024-10-01: 1 positiveWeek of 2024-11-01: 1 positiveWeek of 2024-11-01: 3 negativeWeek of 2024-12-01: 1 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 3 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 1 negativeWeek of 2025-05-01: 2 positiveWeek of 2025-05-01: 3 negativeWeek of 2025-06-01: 1 positiveWeek of 2025-07-01: 2 positiveWeek of 2025-08-01: 1 positiveWeek of 2025-09-01: 1 negativeWeek of 2025-10-01: 1 negativeWeek of 2026-01-01: 1 positiveWeek of 2026-05-01: 3 positiveWeek of 2026-05-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

802026-09-15 07:00 — 0 players2026-09-16 16:00 — 3 players2026-09-17 23:00 — 2 players2026-09-19 07:00 — 2 players2026-09-20 14:00 — 3 players2026-09-21 22:00 — 3 players2026-09-23 05:00 — 0 players2026-09-24 13:00 — 1 players2026-09-25 20:00 — 1 players2026-09-27 04:00 — 3 players2026-09-28 11:00 — 3 players2026-09-29 19:00 — 2 players2026-10-01 02:00 — 0 players2026-10-02 10:00 — 0 players2026-10-03 18:00 — 6 players2026-10-05 02:00 — 3 players2026-10-06 09:00 — 4 players2026-10-07 17:00 — 4 players2026-10-09 00:00 — 4 players2026-10-10 08:00 — 0 players2026-10-11 15:00 — 8 players2026-10-12 23:00 — 3 players2026-10-14 06:00 — 3 players2026-10-14 22:00 — 3 players
Concurrent players, hourly average, last 30 days (census samples).
332Oct 2017Aug 2026Oct 2017 — avg 4 · peak 22Jan 2018 — avg 4 · peak 14Apr 2018 — avg 3 · peak 10Jul 2018 — avg 2 · peak 11Oct 2018 — avg 5 · peak 16Jan 2019 — avg 4 · peak 13Apr 2019 — avg 3 · peak 16Jul 2019 — avg 3 · peak 9Oct 2019 — avg 3 · peak 13Jan 2020 — avg 5 · peak 19Apr 2020 — avg 6 · peak 15Jul 2020 — avg 33 · peak 117Oct 2020 — avg 10 · peak 22Jan 2021 — avg 7 · peak 22Apr 2021 — avg 5 · peak 17Jul 2021 — avg 6 · peak 18Oct 2021 — avg 4 · peak 10Jan 2022 — avg 8 · peak 19Apr 2022 — avg 8 · peak 34Jul 2022 — avg 15 · peak 50Oct 2022 — avg 6 · peak 19Jan 2023 — avg 5 · peak 15Apr 2023 — avg 5 · peak 15Jul 2023 — avg 4 · peak 9Oct 2023 — avg 8 · peak 29Jan 2024 — avg 7 · peak 25Apr 2024 — avg 8 · peak 24Jul 2024 — avg 6 · peak 15Oct 2024 — avg 3 · peak 11Jan 2025 — avg 4 · peak 11Apr 2025 — avg 5 · peak 14Jul 2025 — avg 3 · peak 9Nov 2025 — avg 3 · peak 13Feb 2026 — avg 4 · peak 10May 2026 — avg 3 · peak 11Aug 2026 — avg 3 · peak 8
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$24.99$6.642017-10-172026-08-182017-10-17 — best price $12.742018-09-24 — best price $13.492019-04-05 — best price $19.992020-01-02 — best price $19.992020-11-02 — best price $19.992021-07-08 — best price $19.992022-01-05 — best price $19.992022-09-05 — best price $19.992023-01-30 — best price $19.992023-07-13 — best price $19.992024-01-29 — best price $17.492024-06-27 — best price $11.242024-12-09 — best price $18.742025-03-20 — best price $24.992025-05-19 — best price $9.992025-06-10 — best price $10.002025-07-23 — best price $22.492025-08-21 — best price $9.592025-09-15 — best price $10.622025-10-13 — best price $10.242025-11-03 — best price $24.992025-11-20 — best price $24.992025-12-08 — best price $17.542026-01-07 — best price $24.992026-01-31 — best price $17.542026-03-09 — best price $9.752026-04-01 — best price $24.992026-04-29 — best price $9.852026-05-20 — best price $9.752026-06-10 — best price $12.502026-07-15 — best price $19.882026-08-13 — best price $7.802026-08-18 — best price $9.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

18
achievements tracked
36.2%
earned "Rude Awakening"
10.4%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSSingle-playerSteam Trading CardsSteam WorkshopSteam CloudFamily Sharing

1 supported languages: English

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)1919%18

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

3DCasualSci-fiBuildingSurvivalIsometricColony SimFuturisticManagementSimulation

Census log

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

Recent updates

Players also track

Imagine EarthUnclaimed WorldRimWorldProject AURAPlanetbaseJudgment: Apocalypse Survival SimulationAnother Brick in The MallMashinky

Similarity via IGDB.

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