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How many copies did Backrooms: Partygoers sell?

Estimated copies sold
≈ 843–1k
$3k–$7k after Steam's cut $5k–$11k before Steam's cut
from 34 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 Backrooms: Partygoers and predicted how it would do from its 8 similar games. Every figure here, including Backrooms: Partygoers's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 38.5M–101.0M
best case 133.2M (Grand Theft Auto V Legacy)
Games like Backrooms: Partygoers

A typical game among these

≈ 38.5M–101.0M copies

≈ $243.6M–$555.1M after Steam's cut

from ~1.0M 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.

No genre covers most of these similar games. The closest is First-Person (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: Grand Theft Auto V Legacy at ≈ 101.5M–164.9M copies.

The genre you'd be entering
These games
The similar games share First-Person (4 of 8) and FPS (3 of 8).
The winners
Winners here lead with Open World + Crime.
When they shipped
The similar games span 2006 to 2020, 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

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SteamSpy 20M–50M
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Left 4 Dead 2
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SteamSpy 50M–100M
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ZombiesCo-op
Grand Theft Auto V Legacy
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2.0x vs typical
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Very Positive
Open WorldAction
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$42.5M–$114.3M after Steam's cut $77.3M–$175.9M before Steam's cut
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Cyberpunk 2077
2020
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≈ 24.4M–39.6M
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≈ 59.7M–97.0M
SteamSpy 10M–20M
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Garry's Mod
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Est. copies
≈ 80.0M–130.1M
SteamSpy 20M–50M
Est. revenue
$219.9M–$591.3M after Steam's cut $399.8M–$909.6M before Steam's cut
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SteamSpy 10M–20M
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Very Positive
HorrorOnline Co-Op

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