The Game Census
Mercury Fallen cover art

Mercury Fallen

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

Steam

IndieSimulationStrategy

Modes: Single player

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.

6
playing now
78%
positive of 317 reviews
Mostly Positive
steam rating
20,000–50,000
owners (SteamSpy est.)
70/100
IGDB user rating (2 ratings)
platinum
deck/linux tier (ProtonDB)
$24.99
steam price (US)

6 players in-game as of 2026-08-30 12:00 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
  • · 6 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 44% of 17,990 Indie games in the census by review count.
Estimated sales: 6.3k–14k copies

Review-multiple estimate from 317 total reviews — how this is computed.

Current store prices

lowest across shops (ITAD)$9.99-60%

Deal snapshots via CheapShark, refreshed daily.

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

12-month high $24.99 · on sale 112 of 137 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

602026-08-12 02:00 — 4 players2026-08-12 18:00 — 0 players2026-08-13 09:00 — 1 players2026-08-13 23:00 — 1 players2026-08-14 15:00 — 4 players2026-08-15 07:00 — 3 players2026-08-15 23:00 — 3 players2026-08-16 15:00 — 5 players2026-08-17 07:00 — 3 players2026-08-17 22:00 — 6 players2026-08-18 14:00 — 3 players2026-08-19 06:00 — 2 players2026-08-19 22:00 — 2 players2026-08-20 13:00 — 4 players2026-08-21 05:00 — 3 players2026-08-21 21:00 — 4 players2026-08-22 13:00 — 3 players2026-08-23 04:00 — 4 players2026-08-23 20:00 — 5 players2026-08-24 12:00 — 2 players2026-08-25 04:00 — 2 players2026-08-25 20:00 — 3 players2026-08-26 12:00 — 3 players2026-08-27 04:00 — 2 players2026-08-27 20:00 — 2 players2026-08-28 12:00 — 4 players2026-08-29 04:00 — 3 players2026-08-29 20:00 — 4 players2026-08-30 12:00 — 6 players
Concurrent players, hourly average, last 30 days (census samples).

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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