The Game Census
Behind Glass: Aquarium Simulator cover art

Behind Glass: Aquarium Simulator

BitBros Inc · 2025-01-08

Steam

CasualIndieSimulation

Modes: Single player · Perspectives: First person

Releases: Aug 25, 2021 (Mac), Aug 25, 2021 (PC (Microsoft Windows))

Create stunning virtual aquariums on your PC! Our advanced 3D engine brings your fish tank to life with breathtaking realism, featuring lifelike fish, plants, decorations, and more. Transform your monitor into a vibrant, living aquarium. Virtual aquascaping has never been easier!

Behind Glass: Aquarium Simulator is a Casual, Indie, Simulation game released in 2025, priced at $14.99, with an estimated 0 .. 20,000 owners and a Very Positive review sentiment (95% of 414 reviews).

95%
positive of 419 reviews
Very Positive
steam's rating (official)
0–20,000
owners (SteamSpy est.)
pending
deck/linux tier (ProtonDB)
Playable
Steam Deck (Valve)
SteamOS: Playable
$14.99
steam price (US)

Health check

Quietly active
  • · 35 reviews in the last 8 weeks (~4/week).
  • · Review velocity down 37% vs the prior 8 weeks.
  • · Top 14% of 29,137 Casual games in the census by review count.
Estimated sales: 8.4k–19k copies

Review-multiple estimate from 419 total reviews — how this is computed.

All-time low: $8.99 at Steam (2021-12-22) · bundled 3×via IsThereAnyDeal

12-month high $14.99 · on sale 3 of 8 observed days (census price snapshots)

Review momentum

PositiveNegative
272720212026Week of 2021-08-01: 4 positiveWeek of 2021-09-01: 4 positiveWeek of 2021-10-01: 6 positiveWeek of 2021-10-01: 1 negativeWeek of 2021-11-01: 9 positiveWeek of 2021-12-01: 5 positiveWeek of 2022-01-01: 14 positiveWeek of 2022-02-01: 16 positiveWeek of 2022-03-01: 19 positiveWeek of 2022-03-01: 1 negativeWeek of 2022-04-01: 12 positiveWeek of 2022-05-01: 6 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 8 positiveWeek of 2022-07-01: 5 positiveWeek of 2022-08-01: 7 positiveWeek of 2022-09-01: 7 positiveWeek of 2022-10-01: 3 positiveWeek of 2022-10-01: 1 negativeWeek of 2022-11-01: 4 positiveWeek of 2022-12-01: 6 positiveWeek of 2022-12-01: 2 negativeWeek of 2023-01-01: 17 positiveWeek of 2023-02-01: 5 positiveWeek of 2023-02-01: 1 negativeWeek of 2023-03-01: 4 positiveWeek of 2023-04-01: 6 positiveWeek of 2023-05-01: 5 positiveWeek of 2023-06-01: 5 positiveWeek of 2023-07-01: 8 positiveWeek of 2023-08-01: 3 positiveWeek of 2023-09-01: 3 positiveWeek of 2023-10-01: 10 positiveWeek of 2023-11-01: 5 positiveWeek of 2023-11-01: 1 negativeWeek of 2023-12-01: 5 positiveWeek of 2024-01-01: 6 positiveWeek of 2024-02-01: 5 positiveWeek of 2024-03-01: 8 positiveWeek of 2024-04-01: 7 positiveWeek of 2024-05-01: 2 positiveWeek of 2024-06-01: 5 positiveWeek of 2024-07-01: 1 positiveWeek of 2024-08-01: 5 positiveWeek of 2024-09-01: 3 positiveWeek of 2024-10-01: 2 positiveWeek of 2024-10-01: 1 negativeWeek of 2024-11-01: 1 positiveWeek of 2024-12-01: 4 positiveWeek of 2025-01-01: 27 positiveWeek of 2025-01-01: 1 negativeWeek of 2025-02-01: 6 positiveWeek of 2025-03-01: 8 positiveWeek of 2025-03-01: 1 negativeWeek of 2025-04-01: 10 positiveWeek of 2025-05-01: 7 positiveWeek of 2025-05-01: 1 negativeWeek of 2025-06-01: 9 positiveWeek of 2025-06-01: 1 negativeWeek of 2025-07-01: 6 positiveWeek of 2025-08-01: 4 positiveWeek of 2025-08-01: 1 negativeWeek of 2025-09-01: 2 positiveWeek of 2025-10-01: 2 positiveWeek of 2025-11-01: 12 positiveWeek of 2025-11-01: 1 negativeWeek of 2025-12-01: 5 positiveWeek of 2026-01-01: 3 positiveWeek of 2026-01-01: 1 negativeWeek of 2026-02-01: 3 positiveWeek of 2026-03-01: 5 positiveWeek of 2026-03-01: 1 negativeWeek of 2026-04-01: 2 positiveWeek of 2026-05-01: 4 positiveWeek of 2026-05-01: 1 negativeWeek of 2026-06-01: 4 positiveWeek of 2026-07-01: 6 positiveWeek of 2026-08-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Price history

$14.99$8.992021-08-252026-07-272021-08-25 — best price $9.992022-01-05 — best price $9.992022-02-03 — best price $9.992022-04-04 — best price $9.992022-07-07 — best price $9.992022-11-29 — best price $9.992023-01-05 — best price $9.992023-03-23 — best price $9.992023-07-13 — best price $9.992023-11-28 — best price $9.992024-01-04 — best price $9.992024-03-21 — best price $9.992024-11-27 — best price $11.992024-12-19 — best price $11.992025-01-09 — best price $12.742025-03-13 — best price $11.992025-06-26 — best price $11.992025-07-10 — best price $14.992025-10-06 — best price $14.992026-01-05 — best price $14.992026-03-26 — best price $14.992026-07-09 — best price $14.992026-07-27 — best price $14.99
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

11
achievements tracked
25.9%
earned "Refurbisher"
3.5%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSSingle-playerSteam AchievementsSteam WorkshopSteam CloudFamily Sharing2 DLC

14 supported languages: English, German, French, Italian, Spanish - Spain, Japanese, Portuguese - Portugal, Russian, Turkish, Portuguese - Brazil, Spanish - Latin America, Korean…

Post-launch support: 2 DLC released, first 2025-04-16, latest 2026-07-13 (Steam store data)

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)5319%11

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

Player tags

3DIdlerNatureClickerPhysicsBuildingLife SimRelaxingEducationRealistic

Census log

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

Recent updates

Players also track

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Similarity via IGDB.

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