The Game Census
Megaquarium cover art

Megaquarium

Twice Circled · 2018-09-13

SteamGOGPlayStation StoreAmazonMicrosoft Store

CasualIndieSimulationStrategy

Modes: Single player

Releases: Oct 17, 2019 (Nintendo Switch), Sep 13, 2018 (Linux), Oct 18, 2019 (PlayStation 4), Oct 18, 2019 (Xbox One), Sep 13, 2018 (Mac), Sep 13, 2018 (PC (Microsoft Windows))

The public aquarium simulator. Design your displays, look after your fish, manage your staff and keep your guests happy! It's all in a day's work as the curator of your very own Megaquarium.

85
playing now
95%
positive of 3.8k reviews
Overwhelmingly Positive
steam rating
200,000–500,000
owners (SteamSpy est.)
82/100
critic score (6 outlets, IGDB)
60/100
IGDB user rating (4 ratings)
platinum
deck/linux tier (ProtonDB)
$24.99
steam price (US)

85 players in-game as of 2026-08-30 03:00 UTC (census sample)

Megaquarium is a business simulation game developed and published in 2018 by Twice Circled.

Health check

Healthy
  • · 85 players in-game at the last census sample.
  • · 286 reviews in the last 8 weeks (~36/week).
  • · Review velocity up 99% vs the prior 8 weeks.
  • · Top 8% of 9,617 Casual games in the census by review count.

Health tier since 2026-08-28

Estimated sales: 94k–226k copies

Review-multiple estimate from 3,773 total reviews — how this is computed.

Current store prices

GOG$7.49-70%
lowest across shops (ITAD)$7.49-70%
Microsoft Store$23.99

Deal snapshots via CheapShark, refreshed daily.

All-time low: $7.49 at Steam (2023-11-30)via IsThereAnyDeal

12-month high $24.99 · on sale 23 of 40 observed days · at its all-time low (census price snapshots)

Review momentum

PositiveNegative
17017020182026Week of 2018-09-01: 170 positiveWeek of 2018-09-01: 21 negativeWeek of 2018-10-01: 53 positiveWeek of 2018-10-01: 2 negativeWeek of 2018-11-01: 58 positiveWeek of 2018-11-01: 5 negativeWeek of 2018-12-01: 53 positiveWeek of 2018-12-01: 4 negativeWeek of 2019-01-01: 57 positiveWeek of 2019-01-01: 9 negativeWeek of 2019-02-01: 25 positiveWeek of 2019-02-01: 5 negativeWeek of 2019-03-01: 13 positiveWeek of 2019-04-01: 8 positiveWeek of 2019-04-01: 1 negativeWeek of 2019-05-01: 10 positiveWeek of 2019-05-01: 1 negativeWeek of 2019-06-01: 39 positiveWeek of 2019-06-01: 1 negativeWeek of 2019-07-01: 104 positiveWeek of 2019-07-01: 10 negativeWeek of 2019-08-01: 22 positiveWeek of 2019-08-01: 2 negativeWeek of 2019-09-01: 9 positiveWeek of 2019-09-01: 2 negativeWeek of 2019-10-01: 31 positiveWeek of 2019-10-01: 3 negativeWeek of 2019-11-01: 78 positiveWeek of 2019-11-01: 1 negativeWeek of 2019-12-01: 40 positiveWeek of 2019-12-01: 1 negativeWeek of 2020-01-01: 50 positiveWeek of 2020-01-01: 4 negativeWeek of 2020-02-01: 23 positiveWeek of 2020-02-01: 1 negativeWeek of 2020-03-01: 27 positiveWeek of 2020-04-01: 40 positiveWeek of 2020-04-01: 5 negativeWeek of 2020-05-01: 42 positiveWeek of 2020-06-01: 159 positiveWeek of 2020-06-01: 11 negativeWeek of 2020-07-01: 67 positiveWeek of 2020-07-01: 2 negativeWeek of 2020-08-01: 54 positiveWeek of 2020-08-01: 1 negativeWeek of 2020-09-01: 27 positiveWeek of 2020-09-01: 1 negativeWeek of 2020-10-01: 54 positiveWeek of 2020-10-01: 2 negativeWeek of 2020-11-01: 39 positiveWeek of 2020-11-01: 5 negativeWeek of 2020-12-01: 42 positiveWeek of 2020-12-01: 5 negativeWeek of 2021-01-01: 57 positiveWeek of 2021-01-01: 2 negativeWeek of 2021-02-01: 42 positiveWeek of 2021-02-01: 1 negativeWeek of 2021-03-01: 44 positiveWeek of 2021-03-01: 1 negativeWeek of 2021-04-01: 24 positiveWeek of 2021-04-01: 1 negativeWeek of 2021-05-01: 45 positiveWeek of 2021-05-01: 1 negativeWeek of 2021-06-01: 31 positiveWeek of 2021-06-01: 3 negativeWeek of 2021-07-01: 43 positiveWeek of 2021-07-01: 3 negativeWeek of 2021-08-01: 37 positiveWeek of 2021-08-01: 4 negativeWeek of 2021-09-01: 17 positiveWeek of 2021-10-01: 16 positiveWeek of 2021-11-01: 63 positiveWeek of 2021-11-01: 1 negativeWeek of 2021-12-01: 64 positiveWeek of 2021-12-01: 2 negativeWeek of 2022-01-01: 38 positiveWeek of 2022-01-01: 1 negativeWeek of 2022-02-01: 25 positiveWeek of 2022-02-01: 2 negativeWeek of 2022-03-01: 44 positiveWeek of 2022-04-01: 35 positiveWeek of 2022-05-01: 23 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 21 positiveWeek of 2022-06-01: 3 negativeWeek of 2022-07-01: 24 positiveWeek of 2022-07-01: 2 negativeWeek of 2022-08-01: 18 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 25 positiveWeek of 2022-10-01: 21 positiveWeek of 2022-10-01: 2 negativeWeek of 2022-11-01: 25 positiveWeek of 2022-12-01: 21 positiveWeek of 2022-12-01: 1 negativeWeek of 2023-01-01: 19 positiveWeek of 2023-02-01: 29 positiveWeek of 2023-02-01: 3 negativeWeek of 2023-03-01: 19 positiveWeek of 2023-04-01: 12 positiveWeek of 2023-05-01: 15 positiveWeek of 2023-05-01: 1 negativeWeek of 2023-06-01: 13 positiveWeek of 2023-06-01: 3 negativeWeek of 2023-07-01: 22 positiveWeek of 2023-08-01: 20 positiveWeek of 2023-08-01: 1 negativeWeek of 2023-09-01: 22 positiveWeek of 2023-10-01: 68 positiveWeek of 2023-10-01: 3 negativeWeek of 2023-11-01: 32 positiveWeek of 2023-11-01: 2 negativeWeek of 2023-12-01: 77 positiveWeek of 2023-12-01: 3 negativeWeek of 2024-01-01: 57 positiveWeek of 2024-01-01: 2 negativeWeek of 2024-02-01: 20 positiveWeek of 2024-02-01: 1 negativeWeek of 2024-03-01: 32 positiveWeek of 2024-04-01: 16 positiveWeek of 2024-05-01: 32 positiveWeek of 2024-06-01: 24 positiveWeek of 2024-06-01: 1 negativeWeek of 2024-07-01: 34 positiveWeek of 2024-08-01: 25 positiveWeek of 2024-08-01: 3 negativeWeek of 2024-09-01: 22 positiveWeek of 2024-09-01: 1 negativeWeek of 2024-10-01: 15 positiveWeek of 2024-10-01: 2 negativeWeek of 2024-11-01: 24 positiveWeek of 2024-12-01: 22 positiveWeek of 2024-12-01: 1 negativeWeek of 2025-01-01: 20 positiveWeek of 2025-01-01: 2 negativeWeek of 2025-02-01: 16 positiveWeek of 2025-02-01: 1 negativeWeek of 2025-03-01: 18 positiveWeek of 2025-03-01: 3 negativeWeek of 2025-04-01: 13 positiveWeek of 2025-05-01: 20 positiveWeek of 2025-06-01: 19 positiveWeek of 2025-06-01: 2 negativeWeek of 2025-07-01: 23 positiveWeek of 2025-07-01: 2 negativeWeek of 2025-08-01: 19 positiveWeek of 2025-09-01: 17 positiveWeek of 2025-10-01: 11 positiveWeek of 2025-11-01: 16 positiveWeek of 2025-11-01: 2 negativeWeek of 2025-12-01: 16 positiveWeek of 2025-12-01: 1 negativeWeek of 2026-01-01: 34 positiveWeek of 2026-01-01: 1 negativeWeek of 2026-02-01: 39 positiveWeek of 2026-02-01: 4 negativeWeek of 2026-03-01: 77 positiveWeek of 2026-03-01: 2 negativeWeek of 2026-04-01: 23 positiveWeek of 2026-04-01: 1 negativeWeek of 2026-05-01: 29 positiveWeek of 2026-05-01: 3 negativeWeek of 2026-06-01: 16 positiveWeek of 2026-06-01: 1 negativeWeek of 2026-07-01: 37 positiveWeek of 2026-07-01: 2 negativeWeek of 2026-08-01: 16 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

85202026-08-06 23:00 — 53 players2026-08-07 07:00 — 27 players2026-08-07 15:00 — 55 players2026-08-07 23:00 — 51 players2026-08-08 07:00 — 36 players2026-08-08 15:00 — 70 players2026-08-08 23:00 — 46 players2026-08-09 07:00 — 35 players2026-08-09 15:00 — 72 players2026-08-09 23:00 — 51 players2026-08-10 07:00 — 30 players2026-08-10 16:00 — 47 players2026-08-11 00:00 — 43 players2026-08-11 08:00 — 24 players2026-08-11 16:00 — 41 players2026-08-12 23:00 — 37 players2026-08-14 07:00 — 20 players2026-08-15 15:00 — 56 players2026-08-16 23:00 — 61 players2026-08-18 06:00 — 22 players2026-08-19 14:00 — 58 players2026-08-20 21:00 — 53 players2026-08-22 05:00 — 49 players2026-08-23 12:00 — 61 players2026-08-24 20:00 — 51 players2026-08-26 04:00 — 38 players2026-08-27 12:00 — 52 players2026-08-28 19:00 — 81 players2026-08-30 03:00 — 85 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$24.99$7.492018-09-132026-08-302018-09-13 — best price $22.492018-12-28 — best price $18.692019-03-29 — best price $24.992019-08-28 — best price $19.992019-11-12 — best price $24.992020-01-24 — best price $14.992020-05-27 — best price $12.492020-08-05 — best price $14.992020-11-27 — best price $9.992021-03-11 — best price $12.492021-06-09 — best price $12.492021-11-11 — best price $12.492021-12-17 — best price $9.992022-02-03 — best price $24.992022-04-04 — best price $24.992022-06-28 — best price $24.992022-09-29 — best price $12.492022-12-12 — best price $11.242023-05-02 — best price $9.992023-09-17 — best price $24.992023-11-30 — best price $7.492024-01-25 — best price $12.492024-03-21 — best price $24.992024-06-19 — best price $9.992024-09-12 — best price $14.992024-11-05 — best price $24.992025-01-03 — best price $24.992025-03-13 — best price $7.492025-06-03 — best price $24.992025-09-29 — best price $7.492025-12-11 — best price $7.492026-02-25 — best price $7.492026-05-05 — best price $7.492026-07-17 — best price $7.492026-08-30 — best price $7.49
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

1712026-05-30 — 9 pageviews2026-06-02 — 6 pageviews2026-06-05 — 1 pageviews2026-06-08 — 6 pageviews2026-06-11 — 5 pageviews2026-06-14 — 8 pageviews2026-06-17 — 3 pageviews2026-06-20 — 3 pageviews2026-06-23 — 12 pageviews2026-06-26 — 5 pageviews2026-06-29 — 5 pageviews2026-07-02 — 5 pageviews2026-07-05 — 4 pageviews2026-07-08 — 2 pageviews2026-07-11 — 4 pageviews2026-07-14 — 3 pageviews2026-07-17 — 3 pageviews2026-07-20 — 7 pageviews2026-07-23 — 6 pageviews2026-07-26 — 9 pageviews2026-07-29 — 4 pageviews2026-08-01 — 3 pageviews2026-08-04 — 3 pageviews2026-08-07 — 3 pageviews2026-08-10 — 4 pageviews2026-08-13 — 4 pageviews2026-08-16 — 3 pageviews2026-08-19 — 3 pageviews2026-08-22 — 8 pageviews2026-08-25 — 6 pageviews2026-08-27 — 17 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Completion

25
achievements tracked
71.8%
earned "Complete 1. Sunnyside"
11.9%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSLinuxSingle-playerSteam AchievementsSteam WorkshopCamera ComfortCustom Volume ControlsAdjustable DifficultyMouse Only OptionSave AnytimeStereo SoundSteam Cloud4 DLC

10 supported languages: English, French, German, Spanish - Spain, Polish, Russian, Simplified Chinese, Portuguese - Brazil, Italian, Japanese

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)3,5910%25
Xbox One (Xbox)2897%18
PS4 (PlayStation)24611%19
PS4 (PlayStation)16150%16
PS4 (PlayStation)11911%19
Switch (Nintendo)100%0
Switch (Nintendo)10%0

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

Player tags

CuteIndieCasualEconomyFishingSandboxBuildingModdableRelaxingManagement

Census log

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

Recent updates

Players also track

RimWorldSoftware Inc.Another Brick in The MallForce of NatureMashinkyStartup CompanyRise of IndustryJunkyard Simulator

Similarity via IGDB.

Official site ↗