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How many copies did Idle Aquarium sell?

Estimated copies sold
≈ 124–202
$34–$91 after Steam's cut $61–$140 before the cut
from 5 reviews (5 user reviews)
Thin evidence: 5 reviews. That range swings on one or two people, so read it as a hint, not a measurement.

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

Does this actually work?

We left Idle Aquarium out and predicted the genre from its 8 similar games. Every figure here, including Idle Aquarium's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 781–119k
best case 1.8M (WorldBox - God Simulator)
Games like Idle Aquarium

The middle of these games

≈ 781–119k copies

≈ $7k–$1.0M after Steam's cut

from ~1k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

4 of your 8 similar games are hits.

Best case: WorldBox - God Simulator at ≈ 1.4M–2.3M copies, ≈ $7.7M–$20.6M after Steam's cut.

What it took to get here
About half the games that made it here had over 543 reviews in their first month; the spread ran 1 to 5k.
The genre you'd be entering
Your set
Your set clusters on God Game (8 of 8) and Life Sim (7 of 8).
The winners
Winners here lead with Sandbox + God Game, priced around $20.
The era
Only 2 of your 8 similar games shipped in the last two years. That says more about your picks than about the market, so add newer similar games to read the timing.
How these numbers were worked out

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

Copies come from each game's reviews times a sales-per-review rate that falls with release age, from about 31 for the most recent game here to about 36 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

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Est. copies
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6 reviews
6 user reviews
SandboxLife Sim
Reus 2
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Est. copies
≈ 57k–92k
1.6x vs typical
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God GameColony Sim
Deisim
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$93k–$250k after Steam's cut $169k–$384k before the cut
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God GameSandbox
USD Clicker
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≈ 99–161
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$27–$73 after Steam's cut $49–$112 before the cut
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ClickerIdler
The Sapling
2019
Est. copies
≈ 57k–93k
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$282k–$758k after Steam's cut $513k–$1.2M before the cut
$17.99
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Life SimSandbox
The Tenants
2022
Est. copies
≈ 192k–313k
5.4x vs typical
SteamSpy 500k–1M
Est. revenue
$1.1M–$2.8M after Steam's cut $1.9M–$4.4M before the cut
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ManagementDesign & Illustration
WorldBox - God Simulator
2021
Est. copies
≈ 1.4M–2.3M
39x vs typical
SteamSpy 1M–2M
Est. revenue
$7.7M–$20.6M after Steam's cut $14.0M–$31.8M before the cut
$19.99
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SandboxGod Game
EvoLife
2022
Est. copies
≈ 744–1k
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$9.99
30 reviews
Positive
IdlerSimulation

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