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How many copies did The Turing Test sell?

Estimated copies sold
≈ 335k–544k
$2.3M–$6.2M after Steam's cut $4.2M–$9.5M before Steam's cut
from 8k 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 The Turing Test and predicted how it would do from its 8 similar games. Every figure here, including The Turing Test's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 3.0M–18.2M
best case 38.8M (Portal 2)
Games like The Turing Test

A typical game among these

≈ 3.0M–18.2M copies

≈ $19.1M–$76.8M after Steam's cut

from ~81k 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: Portal 2 at ≈ 29.5M–48.0M copies, ≈ $81.1M–$218.1M after Steam's cut.

The genre you'd be entering
These games
The similar games share First-Person (5 of 8) and Story Rich (5 of 8).
The winners
Winners here lead with Platformer + Puzzle, priced around $10.
When they shipped
The similar games span 2004 to 2022, and none of them 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

Half-Life 2: Episode Two
2007
Est. copies
≈ 2.6M–4.2M
SteamSpy 5M–10M
Est. revenue
Free
Free
41k reviews
Overwhelmingly Positive
FPSAction
Half-Life 2
2004
Est. copies
≈ 17.7M–28.8M
3.5x vs typical
SteamSpy 10M–20M
Est. revenue
$48.6M–$130.7M after Steam's cut $88.4M–$201.1M before Steam's cut
$9.99
280k reviews
Overwhelmingly Positive
FPSAction
Pacify
2019
Est. copies
≈ 1.2M–2.0M
SteamSpy 2M–5M
Est. revenue
$1.7M–$4.5M after Steam's cut $3.1M–$7.0M before Steam's cut
$4.99
43k reviews
Very Positive
HorrorOnline Co-Op
Portal
2007
Est. copies
≈ 12.6M–20.5M
2.5x vs typical
SteamSpy 10M–20M
Est. revenue
$34.6M–$93.1M after Steam's cut $63.0M–$143.3M before Steam's cut
$9.99
199k reviews
Overwhelmingly Positive
PuzzlePuzzle-Platformer
Outer Wilds
2020
Est. copies
≈ 2.7M–4.4M
SteamSpy 1M–2M
Est. revenue
$18.5M–$49.7M after Steam's cut $33.6M–$76.4M before Steam's cut
$24.99
108k reviews
Overwhelmingly Positive
ExplorationSpace
Portal 2
2011
Est. copies
≈ 29.5M–48.0M
5.8x vs typical
SteamSpy 5M–10M
Est. revenue
$81.1M–$218.1M after Steam's cut $147.5M–$335.6M before Steam's cut
$9.99
467k reviews
Overwhelmingly Positive
SOMA
2015
Est. copies
≈ 2.6M–4.2M
SteamSpy 2M–5M
Est. revenue
$21.4M–$57.4M after Steam's cut $38.8M–$88.3M before Steam's cut
$29.99
53k reviews
Overwhelmingly Positive
Inside the Backrooms
2022
Est. copies
≈ 1.2M–1.9M
SteamSpy 1M–2M
Est. revenue
$2.2M–$6.0M after Steam's cut $4.1M–$9.2M before Steam's cut
$6.99
47k reviews
Mostly Positive
HorrorMultiplayer

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