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How many copies did Frog Detective 1: The Haunted Island sell?

Estimated copies sold
≈ 169k–274k
$232k–$623k after Steam's cut $421k–$958k before Steam's cut
from 6k reviews (Very 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 Frog Detective 1: The Haunted Island and predicted how it would do from its 8 similar games. Every figure here, including Frog Detective 1: The Haunted Island's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 62k–127k
best case 219k (Duck Detective: The Secret Salami)
Games like Frog Detective 1: The Haunted Island

A typical game among these

≈ 62k–127k copies

≈ $153k–$378k after Steam's cut

from ~2k reviews

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

6 of the 8 similar games are hits.

Best case: Duck Detective: The Secret Salami at ≈ 167k–271k copies, ≈ $458k–$1.2M after Steam's cut.

What their first month looked like
About half the games that made it here had over 1k reviews in their first month; the range was 683 to 2k.
The genre you'd be entering
These games
The similar games share Detective (8 of 8) and Mystery (5 of 8).
The winners
Winners here lead with Detective + Investigation, priced around $10.
When they shipped
The similar games span 2010 to 2025, and 2 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 79 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Puzzle Agent 2
2011
Est. copies
≈ 73k–119k
SteamSpy 500k–1M
Est. revenue
$101k–$271k after Steam's cut $183k–$417k before Steam's cut
$4.99
1k reviews
Very Positive
AdventurePuzzle
Puzzle Agent
2010
Est. copies
≈ 180k–292k
SteamSpy 500k–1M
Est. revenue
$247k–$663k after Steam's cut $448k–$1.0M before Steam's cut
$4.99
3k reviews
Very Positive
PuzzleAdventure
The Journey Down: Chapter Two
2014
Est. copies
≈ 31k–51k
SteamSpy 50k–100k
Est. revenue
$129k–$348k after Steam's cut $235k–$535k before Steam's cut
$14.99
560 reviews
Overwhelmingly Positive
AtmosphericNoir
Duck Detective: The Secret Salami
2024
Est. copies
≈ 167k–271k
3.1x vs typical
SteamSpy 100k–200k
Est. revenue
$458k–$1.2M after Steam's cut $832k–$1.9M before Steam's cut
$9.99
7k reviews
Very Positive
DetectiveInvestigation
Detective Sherlock Pug - Hidden Object. Relaxing games
2019
Est. copies
≈ 2k–3k
SteamSpy under 20k
Est. revenue
$930–$3k after Steam's cut $2k–$4k before Steam's cut
$1.99
59 reviews
Mixed
IndieCasual
Frog Detective 2: The Case of the Invisible Wizard
2019
Est. copies
≈ 63k–103k
SteamSpy 100k–200k
Est. revenue
$87k–$234k after Steam's cut $158k–$360k before Steam's cut
$4.99
2k reviews
Overwhelmingly Positive
ComedyCasual
Duck Detective: The Ghost of Glamping
2025
Est. copies
≈ 70k–113k
SteamSpy 20k–50k
Est. revenue
$191k–$514k after Steam's cut $347k–$790k before Steam's cut
$9.99
3k reviews
Overwhelmingly Positive
CasualAdventure
Frog Detective 3: Corruption at Cowboy County
2022
Est. copies
≈ 52k–85k
SteamSpy 20k–50k
Est. revenue
$71k–$192k after Steam's cut $130k–$295k before Steam's cut
$4.99
2k reviews
Overwhelmingly Positive
ComedyFunny

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