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How many copies did PROJECT 13 Perception Test sell?

Estimated copies sold
≈ 744–1k
$816–$2k after Steam's cut $1k–$3k before Steam's cut
from 30 reviews (Mixed)

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 PROJECT 13 Perception Test and predicted how it would do from its 8 similar games. Every figure here, including PROJECT 13 Perception Test's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 619k–1.7M
best case 4.5M (House Flipper)
Games like PROJECT 13 Perception Test

A typical game among these

≈ 619k–1.7M copies

≈ $1.5M–$14.1M after Steam's cut

from ~25k reviews

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

All 8 of the similar games are hits.

Best case: House Flipper at ≈ 3.4M–5.5M copies, ≈ $23.4M–$63.0M after Steam's cut.

What their first month looked like
About half the games that made it here had over 3k reviews in their first month; the range was 691 to 51k.
The genre you'd be entering
These games
The similar games share Simulation (5 of 8) and Immersive Sim (4 of 8).
The winners
Winners here lead with Simulation + Design & Illustration, priced around $25.
When they shipped
The similar games span 2018 to 2026, 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 38 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

F1® 22
2022
Est. copies
≈ 634k–1.0M
SteamSpy 500k–1M
Est. revenue
Free
Free
26k reviews
Mixed
RacingImmersive Sim
Cyber Manhunt
2021
Est. copies
≈ 390k–634k
SteamSpy 500k–1M
Est. revenue
$1.1M–$2.9M after Steam's cut $1.9M–$4.4M before Steam's cut
$9.99
16k reviews
Very Positive
The Test
2020
Est. copies
≈ 499k–810k
SteamSpy 500k–1M
Est. revenue
$273k–$734k after Steam's cut $496k–$1.1M before Steam's cut
$1.99
20k reviews
Overwhelmingly Positive
Choose Your Own AdventureSimulation
KinitoPET
2024
Est. copies
≈ 367k–596k
SteamSpy 200k–500k
Est. revenue
$604k–$1.6M after Steam's cut $1.1M–$2.5M before Steam's cut
$5.99
15k reviews
Very Positive
TCG Card Shop Simulator
2026
Est. copies
≈ 1.3M–2.0M
2.0x vs typical
SteamSpy 2M–5M
Est. revenue
$6.9M–$18.6M after Steam's cut $12.6M–$28.6M before Steam's cut
$19.99
51k reviews
Overwhelmingly Positive
House Flipper
2018
Est. copies
≈ 3.4M–5.5M
4.4x vs typical
SteamSpy 2M–5M
Est. revenue
$23.4M–$63.0M after Steam's cut $42.6M–$96.9M before Steam's cut
$24.99
112k reviews
Very Positive
SimulationDesign & Illustration
PC Building Simulator
2019
Est. copies
≈ 1.5M–2.5M
2.1x vs typical
SteamSpy 1M–2M
Est. revenue
$8.4M–$22.5M after Steam's cut $15.2M–$34.6M before Steam's cut
$19.99
53k reviews
Very Positive
SimulationEducation
Cruelty Squad
2021
Est. copies
≈ 621k–1.0M
SteamSpy 1M–2M
Est. revenue
$3.4M–$9.2M after Steam's cut $6.2M–$14.1M before Steam's cut
$19.99
25k reviews
Overwhelmingly Positive
CapitalismSurreal

Sizing up your own game? See how many copies games in its genre usually sell before you build it.