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How many copies did Intelligence: Underwater Kingdom sell?

Estimated copies sold
≈ 426–692
$468–$1k after Steam's cut $850–$2k before Steam's cut
from 14 reviews (Mostly Positive)

Copies are estimated from the public review count, adjusted for release year, and cross-checked against SteamSpy's own estimate.

Did the prediction match what actually happened?

We hid Intelligence: Underwater Kingdom and predicted how it would do from its 8 similar games. Every figure here, including Intelligence: Underwater Kingdom's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 559–1k
best case 1.2M (Feed and Grow: Fish)
Games like Intelligence: Underwater Kingdom

A typical game among these

≈ 559–1k copies

≈ $862–$3k after Steam's cut

from ~24 reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

2 of the 8 similar games are hits.

No genre covers most of these similar games. The closest is Puzzle (4 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Feed and Grow: Fish at ≈ 906k–1.5M copies, ≈ $3.7M–$10.0M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like
About half the games that made it here had over 17 reviews in their first month; the range was 4 to 45.
Games with under about 100 reviews in month one almost never recover.
The genre you'd be entering
These games
The similar games share Puzzle (4 of 8) and Underwater (4 of 8).
The winners
Winners here lead with Fishing + Cats, priced around $7.
When they shipped
The similar games span 2015 to 2025, and 1 of the 8 shipped in the last two years.
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 61 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Blind Fishes
2023
Est. copies
≈ 347–564
SteamSpy under 20k
Est. revenue
$190–$511 after Steam's cut $345–$786 before Steam's cut
$1.99
14 reviews
Positive
CasualUnderwater
Cat Goes Fishing
2015
Est. copies
≈ 808k–1.3M
690x vs typical
SteamSpy 500k–1M
Est. revenue
$1.6M–$4.2M after Steam's cut $2.8M–$6.4M before Steam's cut
$6.99
17k reviews
Very Positive
FishingCats
100 hidden turtles
2022
Est. copies
≈ 12k–20k
20x vs typical
SteamSpy under 20k
Est. revenue
$3k–$9k after Steam's cut $6k–$14k before Steam's cut
$0.99
487 reviews
Very Positive
CasualAdventure
Animals Memory: Underwater Kingdom
2018
Est. copies
≈ 1k–2k
1.8x vs typical
SteamSpy under 20k
Est. revenue
$1k–$4k after Steam's cut $3k–$6k before Steam's cut
$3.99
43 reviews
Mostly Positive
CasualIndie
Aquarist VR
2023
Est. copies
≈ 918–1k
1.5x vs typical
SteamSpy under 20k
Est. revenue
$3k–$7k after Steam's cut $5k–$10k before Steam's cut
$9.99
37 reviews
Mixed
ColorfulSingleplayer
Puzzles for smart: Underwater Kingdom
2018
Est. copies
≈ 426–692
SteamSpy under 20k
Est. revenue
$468–$1k after Steam's cut $850–$2k before Steam's cut
$3.99
14 reviews
Positive
PuzzleUnderwater
Upstream
2025
Est. copies
≈ 595–967
SteamSpy under 20k
Est. revenue
$1k–$4k after Steam's cut $2k–$5k before Steam's cut
$7.99
24 reviews
Positive
Feed and Grow: Fish
2016
Est. copies
≈ 906k–1.5M
908x vs typical
SteamSpy 500k–1M
Est. revenue
$3.7M–$10.0M after Steam's cut $6.8M–$15.5M before Steam's cut
$14.99
22k reviews
Mostly Positive
SimulationUnderwater

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