The Game Census
Grey Goo cover art

Grey Goo

Petroglyph · Six Foot · 2015-01-23

Steam

Strategy

Modes: Single player, Multiplayer, Co-operative

Releases: Jan 23, 2015 (PC (Microsoft Windows))

Fight for control of a frontier world. Gather resources, build your base, and command your forces in battle. Survive long enough to unleash your ultimate weapon - THE EPIC.

3
playing now
68%
positive of 4.3k reviews
Mixed
steam rating
200,000–500,000
owners (SteamSpy est.)
83/100
critic score (4 outlets, IGDB)
70/100
IGDB user rating (22 ratings)
gold
deck/linux tier (ProtonDB)
$29.99
steam price (US)

3 players in-game as of 2026-08-29 12:00 UTC (census sample)

Grey Goo is a science fiction real-time strategy video game developed by Petroglyph Games, produced by Six Foot, and published by Grey Box on January 23, 2015 exclusively for PC Microsoft Windows. It features a playable faction based on the grey goo scenario.

Health check

Quietly active
  • · 3 players in-game at the last census sample.
  • · 24 reviews in the last 8 weeks (~3/week).
  • · Review velocity down 17% vs the prior 8 weeks.
  • · Top 13% of 5,887 Strategy games in the census by review count.

Health tier since 2026-08-30

Estimated sales: 108k–260k copies

Review-multiple estimate from 4,331 total reviews — how this is computed.

All-time low: $4.79 at Steam (2019-06-26)via IsThereAnyDeal

Review momentum

PositiveNegative
181820182026Week of 2018-01-01: 18 positiveWeek of 2018-01-01: 6 negativeWeek of 2018-02-01: 16 positiveWeek of 2018-02-01: 13 negativeWeek of 2018-03-01: 4 positiveWeek of 2018-03-01: 9 negativeWeek of 2018-04-01: 6 positiveWeek of 2018-04-01: 8 negativeWeek of 2018-05-01: 4 positiveWeek of 2018-05-01: 6 negativeWeek of 2018-06-01: 5 positiveWeek of 2018-06-01: 2 negativeWeek of 2018-07-01: 6 positiveWeek of 2018-07-01: 4 negativeWeek of 2018-08-01: 8 positiveWeek of 2018-08-01: 6 negativeWeek of 2018-09-01: 6 positiveWeek of 2018-09-01: 4 negativeWeek of 2018-10-01: 1 positiveWeek of 2018-10-01: 4 negativeWeek of 2018-11-01: 14 positiveWeek of 2018-11-01: 7 negativeWeek of 2018-12-01: 5 positiveWeek of 2018-12-01: 2 negativeWeek of 2019-01-01: 9 positiveWeek of 2019-01-01: 7 negativeWeek of 2019-02-01: 6 positiveWeek of 2019-02-01: 4 negativeWeek of 2019-03-01: 2 positiveWeek of 2019-03-01: 3 negativeWeek of 2019-04-01: 3 positiveWeek of 2019-04-01: 6 negativeWeek of 2019-05-01: 5 positiveWeek of 2019-05-01: 1 negativeWeek of 2019-06-01: 13 positiveWeek of 2019-06-01: 5 negativeWeek of 2019-07-01: 13 positiveWeek of 2019-07-01: 9 negativeWeek of 2019-08-01: 6 positiveWeek of 2019-08-01: 2 negativeWeek of 2019-09-01: 6 positiveWeek of 2019-09-01: 3 negativeWeek of 2019-10-01: 5 positiveWeek of 2019-10-01: 2 negativeWeek of 2019-11-01: 10 positiveWeek of 2019-11-01: 2 negativeWeek of 2019-12-01: 9 positiveWeek of 2019-12-01: 5 negativeWeek of 2020-01-01: 7 positiveWeek of 2020-01-01: 5 negativeWeek of 2020-02-01: 13 positiveWeek of 2020-02-01: 6 negativeWeek of 2020-03-01: 14 positiveWeek of 2020-03-01: 1 negativeWeek of 2020-04-01: 11 positiveWeek of 2020-04-01: 4 negativeWeek of 2020-05-01: 10 positiveWeek of 2020-05-01: 3 negativeWeek of 2020-06-01: 14 positiveWeek of 2020-06-01: 2 negativeWeek of 2020-07-01: 14 positiveWeek of 2020-07-01: 4 negativeWeek of 2020-08-01: 7 positiveWeek of 2020-08-01: 5 negativeWeek of 2020-09-01: 5 positiveWeek of 2020-09-01: 3 negativeWeek of 2020-10-01: 5 positiveWeek of 2020-10-01: 3 negativeWeek of 2020-11-01: 5 positiveWeek of 2020-11-01: 2 negativeWeek of 2020-12-01: 9 positiveWeek of 2020-12-01: 5 negativeWeek of 2021-01-01: 7 positiveWeek of 2021-01-01: 2 negativeWeek of 2021-02-01: 2 positiveWeek of 2021-02-01: 3 negativeWeek of 2021-03-01: 11 positiveWeek of 2021-03-01: 3 negativeWeek of 2021-04-01: 6 positiveWeek of 2021-04-01: 1 negativeWeek of 2021-05-01: 2 positiveWeek of 2021-05-01: 4 negativeWeek of 2021-06-01: 9 positiveWeek of 2021-06-01: 6 negativeWeek of 2021-07-01: 11 positiveWeek of 2021-07-01: 1 negativeWeek of 2021-08-01: 9 positiveWeek of 2021-08-01: 2 negativeWeek of 2021-09-01: 12 positiveWeek of 2021-09-01: 3 negativeWeek of 2021-10-01: 7 positiveWeek of 2021-10-01: 3 negativeWeek of 2021-11-01: 10 positiveWeek of 2021-11-01: 5 negativeWeek of 2021-12-01: 7 positiveWeek of 2021-12-01: 3 negativeWeek of 2022-01-01: 8 positiveWeek of 2022-01-01: 4 negativeWeek of 2022-02-01: 10 positiveWeek of 2022-02-01: 4 negativeWeek of 2022-03-01: 7 positiveWeek of 2022-04-01: 7 positiveWeek of 2022-04-01: 2 negativeWeek of 2022-05-01: 6 positiveWeek of 2022-05-01: 2 negativeWeek of 2022-06-01: 5 positiveWeek of 2022-06-01: 2 negativeWeek of 2022-07-01: 4 positiveWeek of 2022-07-01: 2 negativeWeek of 2022-08-01: 3 positiveWeek of 2022-09-01: 4 positiveWeek of 2022-09-01: 1 negativeWeek of 2022-10-01: 9 positiveWeek of 2022-10-01: 2 negativeWeek of 2022-11-01: 4 positiveWeek of 2022-12-01: 5 positiveWeek of 2023-01-01: 2 positiveWeek of 2023-01-01: 4 negativeWeek of 2023-02-01: 2 positiveWeek of 2023-02-01: 1 negativeWeek of 2023-03-01: 2 positiveWeek of 2023-04-01: 3 positiveWeek of 2023-04-01: 1 negativeWeek of 2023-05-01: 4 positiveWeek of 2023-05-01: 1 negativeWeek of 2023-06-01: 1 positiveWeek of 2023-06-01: 2 negativeWeek of 2023-07-01: 1 positiveWeek of 2023-07-01: 3 negativeWeek of 2023-08-01: 4 positiveWeek of 2023-08-01: 2 negativeWeek of 2023-09-01: 3 positiveWeek of 2023-09-01: 1 negativeWeek of 2023-10-01: 1 positiveWeek of 2023-10-01: 2 negativeWeek of 2023-11-01: 2 positiveWeek of 2023-11-01: 3 negativeWeek of 2023-12-01: 1 positiveWeek of 2023-12-01: 5 negativeWeek of 2024-01-01: 3 positiveWeek of 2024-01-01: 8 negativeWeek of 2024-02-01: 6 negativeWeek of 2024-03-01: 2 positiveWeek of 2024-03-01: 4 negativeWeek of 2024-04-01: 5 positiveWeek of 2024-04-01: 1 negativeWeek of 2024-05-01: 8 positiveWeek of 2024-06-01: 1 positiveWeek of 2024-06-01: 2 negativeWeek of 2024-07-01: 3 positiveWeek of 2024-07-01: 2 negativeWeek of 2024-08-01: 3 positiveWeek of 2024-08-01: 3 negativeWeek of 2024-09-01: 3 positiveWeek of 2024-09-01: 4 negativeWeek of 2024-10-01: 2 positiveWeek of 2024-10-01: 2 negativeWeek of 2024-11-01: 2 positiveWeek of 2024-11-01: 1 negativeWeek of 2024-12-01: 3 positiveWeek of 2024-12-01: 2 negativeWeek of 2025-01-01: 4 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-02-01: 1 negativeWeek of 2025-03-01: 4 positiveWeek of 2025-04-01: 2 positiveWeek of 2025-05-01: 4 positiveWeek of 2025-05-01: 2 negativeWeek of 2025-06-01: 3 negativeWeek of 2025-07-01: 1 positiveWeek of 2025-07-01: 1 negativeWeek of 2025-08-01: 3 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-09-01: 3 positiveWeek of 2025-09-01: 1 negativeWeek of 2025-10-01: 4 positiveWeek of 2025-11-01: 4 positiveWeek of 2025-12-01: 2 positiveWeek of 2025-12-01: 2 negativeWeek of 2026-01-01: 3 positiveWeek of 2026-02-01: 4 positiveWeek of 2026-03-01: 6 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 1 positiveWeek of 2026-05-01: 3 positiveWeek of 2026-05-01: 1 negativeWeek of 2026-06-01: 1 negativeWeek of 2026-08-01: 2 positiveWeek of 2026-08-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

1112026-08-06 23:00 — 4 players2026-08-07 07:00 — 2 players2026-08-07 15:00 — 5 players2026-08-07 23:00 — 4 players2026-08-08 07:00 — 3 players2026-08-08 15:00 — 7 players2026-08-08 23:00 — 4 players2026-08-09 07:00 — 3 players2026-08-09 15:00 — 5 players2026-08-09 23:00 — 3 players2026-08-10 07:00 — 4 players2026-08-10 15:00 — 4 players2026-08-10 23:00 — 5 players2026-08-11 07:00 — 2 players2026-08-11 15:00 — 2 players2026-08-12 23:00 — 3 players2026-08-14 06:00 — 4 players2026-08-15 14:00 — 11 players2026-08-16 22:00 — 7 players2026-08-18 06:00 — 3 players2026-08-19 13:00 — 3 players2026-08-20 21:00 — 6 players2026-08-22 04:00 — 6 players2026-08-23 12:00 — 7 players2026-08-24 20:00 — 5 players2026-08-26 04:00 — 4 players2026-08-27 12:00 — 1 players2026-08-28 20:00 — 3 players2026-08-29 12:00 — 3 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$49.99$0.002015-01-242022-03-022015-01-24 — best price $49.992015-06-12 — best price $19.992015-06-20 — best price $19.992015-08-16 — best price $49.992015-09-04 — best price $34.992015-10-15 — best price $19.992015-11-17 — best price $49.992015-12-22 — best price $19.992016-01-29 — best price $49.992016-02-02 — best price $29.992016-03-01 — best price $29.992016-06-23 — best price $10.192017-01-26 — best price $29.992017-09-07 — best price $7.492017-11-28 — best price $29.992018-02-18 — best price $19.992018-08-07 — best price $0.002018-09-13 — best price $6.792018-11-01 — best price $29.992018-11-27 — best price $19.992019-01-10 — best price $6.592019-02-11 — best price $29.992019-06-25 — best price $19.982019-07-03 — best price $19.872019-08-16 — best price $19.852019-12-03 — best price $29.992020-01-23 — best price $5.992020-02-14 — best price $29.992020-02-27 — best price $19.992020-06-25 — best price $7.492020-12-01 — best price $29.992022-03-02 — best price $19.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

655152026-06-01 — 22 pageviews2026-06-04 — 33 pageviews2026-06-07 — 25 pageviews2026-06-10 — 22 pageviews2026-06-13 — 29 pageviews2026-06-16 — 20 pageviews2026-06-19 — 20 pageviews2026-06-22 — 18 pageviews2026-06-25 — 17 pageviews2026-06-28 — 32 pageviews2026-07-01 — 36 pageviews2026-07-04 — 36 pageviews2026-07-07 — 41 pageviews2026-07-10 — 37 pageviews2026-07-13 — 31 pageviews2026-07-16 — 19 pageviews2026-07-19 — 25 pageviews2026-07-22 — 33 pageviews2026-07-25 — 60 pageviews2026-07-28 — 23 pageviews2026-07-31 — 22 pageviews2026-08-03 — 32 pageviews2026-08-06 — 33 pageviews2026-08-09 — 37 pageviews2026-08-12 — 23 pageviews2026-08-15 — 63 pageviews2026-08-18 — 41 pageviews2026-08-21 — 48 pageviews2026-08-24 — 38 pageviews2026-08-27 — 33 pageviews2026-08-29 — 31 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

35
achievements tracked
45%
earned "Start of Something Epic"
2.3%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsSingle-playerMulti-playerSteam AchievementsSteam Trading CardsSteam WorkshopSteam CloudValve Anti-Cheat enabledStatsSteam LeaderboardsIncludes level editor2 DLC

7 supported languages: English, French, Italian, German, Spanish - Spain, Portuguese - Brazil, Russian

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)5,6690%35

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

Player tags

RTSIndieMechsSpaceAliensRobotsSci-fiStrategyFuturisticCompetitive

Census log

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

Players also track

World War III: Black GoldStellarisUnclaimed WorldENDLESS Legend™RimWorldENDLESS Space™ 2PlanetbaseAncestors Legacy

Similarity via IGDB.

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