The Game Census
Megaquarium cover art

Megaquarium

Twice Circled · 2018-09-13

SteamGOGPlayStation StoreAmazonMicrosoft Store

CasualIndieSimulationStrategy

Modes: Single player · Perspectives: Bird view / Isometric

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.

Megaquarium is a 2018 Casual, Indie, Simulation and Strategy game priced at $24.99, with an owner estimate of 200,000 .. 500,000 and an Overwhelmingly Positive review sentiment (95% of 3790 reviews).— census verdict as of 2026-09-20

35
playing now
95%
positive of 3.8k reviews
Overwhelmingly Positive
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
82/100
critic score (6 outlets, IGDB)
60/100
IGDB user rating (4 ratings)
6
Nexus mods (1.5k downloads)
4.18★
PlayStation Store rating (214 ratings)
platinum
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$24.99
steam price (US)

35 players in-game as of 2026-10-14 13:00 UTC (census sample)

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

Trailer

Megaquarium trailer thumbnail

Megaquarium - Gameplay Trailer | PS4

≈233,110 YouTube results for this game's trailer search

Health check

Healthy
  • · 35 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 3% of 29,032 Casual games in the census by review count.

Health tier since 2026-08-28

Estimated sales: 95k–227k copies

Review-multiple estimate from 3,790 total reviews — how this is computed.

Current store prices

GOG$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 51 of 80 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

79222026-09-14 22:00 — 45 players2026-09-16 06:00 — 27 players2026-09-17 14:00 — 33 players2026-09-18 21:00 — 50 players2026-09-20 05:00 — 33 players2026-09-21 12:00 — 36 players2026-09-22 20:00 — 43 players2026-09-24 03:00 — 22 players2026-09-25 11:00 — 34 players2026-09-26 18:00 — 57 players2026-09-28 02:00 — 36 players2026-09-29 09:00 — 24 players2026-09-30 17:00 — 35 players2026-10-02 00:00 — 27 players2026-10-03 08:00 — 31 players2026-10-04 16:00 — 79 players2026-10-06 00:00 — 38 players2026-10-07 07:00 — 30 players2026-10-08 15:00 — 50 players2026-10-09 22:00 — 46 players2026-10-11 06:00 — 28 players2026-10-12 13:00 — 46 players2026-10-13 21:00 — 38 players2026-10-14 13:00 — 35 players
Concurrent players, hourly average, last 30 days (census samples).
31523Sep 2018Aug 2026Sep 2018 — avg 315 · peak 903Dec 2018 — avg 66 · peak 189Mar 2019 — avg 31 · peak 63Jun 2019 — avg 30 · peak 125Sep 2019 — avg 38 · peak 91Dec 2019 — avg 36 · peak 127Mar 2020 — avg 29 · peak 64Jun 2020 — avg 259 · peak 676Sep 2020 — avg 47 · peak 102Dec 2020 — avg 63 · peak 135Mar 2021 — avg 62 · peak 145Jun 2021 — avg 55 · peak 128Sep 2021 — avg 39 · peak 76Dec 2021 — avg 103 · peak 392Mar 2022 — avg 55 · peak 167Jun 2022 — avg 42 · peak 89Sep 2022 — avg 40 · peak 80Dec 2022 — avg 32 · peak 69Mar 2023 — avg 31 · peak 64Jun 2023 — avg 27 · peak 51Sep 2023 — avg 41 · peak 95Dec 2023 — avg 147 · peak 425Mar 2024 — avg 64 · peak 127Jun 2024 — avg 55 · peak 112Sep 2024 — avg 48 · peak 92Dec 2024 — avg 56 · peak 127Mar 2025 — avg 44 · peak 92Jun 2025 — avg 41 · peak 94Sep 2025 — avg 38 · peak 75Dec 2025 — avg 37 · peak 73Mar 2026 — avg 191 · peak 641Jun 2026 — avg 56 · peak 109Aug 2026 — avg 50 · peak 117
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$24.99$7.492018-09-132026-10-142018-09-13 — best price $22.492019-01-04 — best price $24.992019-06-25 — best price $16.242019-11-01 — best price $24.992020-01-24 — best price $14.992020-06-15 — best price $24.992020-10-12 — best price $14.992021-01-14 — best price $12.492021-06-09 — best price $12.492021-11-22 — best price $24.992022-01-15 — best price $12.492022-03-21 — best price $11.242022-06-28 — best price $24.992022-10-20 — best price $12.492023-02-09 — best price $9.992023-09-07 — best price $12.492023-11-30 — best price $7.492024-02-29 — best price $12.492024-05-03 — best price $24.992024-08-15 — best price $24.992024-11-05 — best price $24.992025-01-22 — best price $24.992025-04-17 — best price $24.992025-08-18 — best price $24.992025-12-11 — best price $7.492026-03-19 — best price $7.492026-06-17 — best price $7.492026-08-30 — best price $7.492026-09-09 — best price $7.492026-09-19 — best price $24.992026-09-29 — best price $7.492026-10-09 — best price $7.492026-10-14 — best price $7.49
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

1212026-05-30 — 9 pageviews2026-06-03 — 7 pageviews2026-06-07 — 2 pageviews2026-06-11 — 5 pageviews2026-06-15 — 4 pageviews2026-06-19 — 3 pageviews2026-06-23 — 12 pageviews2026-06-27 — 5 pageviews2026-07-01 — 8 pageviews2026-07-05 — 4 pageviews2026-07-09 — 4 pageviews2026-07-13 — 9 pageviews2026-07-17 — 3 pageviews2026-07-21 — 11 pageviews2026-07-25 — 4 pageviews2026-07-29 — 4 pageviews2026-08-02 — 4 pageviews2026-08-06 — 8 pageviews2026-08-10 — 4 pageviews2026-08-14 — 4 pageviews2026-08-18 — 6 pageviews2026-08-22 — 8 pageviews2026-08-26 — 9 pageviews2026-08-30 — 6 pageviews2026-09-03 — 1 pageviews2026-09-07 — 4 pageviews2026-09-11 — 6 pageviews2026-09-15 — 6 pageviews2026-09-19 — 5 pageviews2026-09-23 — 3 pageviews2026-09-27 — 6 pageviews2026-10-01 — 4 pageviews2026-10-05 — 4 pageviews2026-10-09 — 2 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

Post-launch support: 4 DLC released, first 2020-06-04, latest 2026-02-25 (Steam store data)

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.

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

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 ↗