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How many copies did Blackout Z: Slaughterhouse Edition sell?

Estimated copies sold
≈ 67k–109k
$92k–$246k after Steam's cut $167k–$379k before Steam's cut
from 2k 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 Blackout Z: Slaughterhouse Edition and predicted how it would do from its 8 similar games. Every figure here, including Blackout Z: Slaughterhouse Edition's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 4.9M–8.4M
best case 29.9M (Among Us)
Games like Blackout Z: Slaughterhouse Edition

A typical game among these

≈ 4.9M–8.4M copies

≈ $31.5M–$49.4M after Steam's cut

from ~102k 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 Sandbox (3 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: Among Us at ≈ 22.8M–37.0M copies, ≈ $31.3M–$84.0M after Steam's cut. It is a breakout hit, far above a typical game.

The genre you'd be entering
These games
The similar games share Sandbox (3 of 8) and Survival (3 of 8).
The winners
Winners here lead with Survival, priced around $20. The breakout hits carry Survival + Social Deduction + Online Co-Op; a typical game here doesn't.
When they shipped
The similar games span 2012 to 2024, 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 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

RimWorld
2018
Est. copies
≈ 7.6M–12.3M
2.4x vs typical
SteamSpy 5M–10M
Est. revenue
$72.7M–$195.4M after Steam's cut $132.2M–$300.7M before Steam's cut
$34.99
249k reviews
Overwhelmingly Positive
Colony SimBase-Building
Among Us
2018
Est. copies
≈ 22.8M–37.0M
7.4x vs typical
SteamSpy 20M–50M
Est. revenue
$31.3M–$84.0M after Steam's cut $56.8M–$129.3M before Steam's cut
$4.99
749k reviews
Very Positive
MultiplayerSocial Deduction
Enter the Gungeon
2016
Est. copies
≈ 3.7M–6.1M
SteamSpy 2M–5M
Est. revenue
$15.4M–$41.5M after Steam's cut $28.1M–$63.9M before Steam's cut
$14.99
90k reviews
Overwhelmingly Positive
Bullet HellAction Roguelike
Hotline Miami
2012
Est. copies
≈ 8.1M–13.2M
SteamSpy 2M–5M
Est. revenue
$22.3M–$60.0M after Steam's cut $40.6M–$92.3M before Steam's cut
$9.99
128k reviews
Overwhelmingly Positive
Great SoundtrackViolent
Last Epoch
2024
Est. copies
≈ 2.9M–4.8M
SteamSpy 20M–50M
Est. revenue
$28.3M–$76.0M after Steam's cut $51.4M–$116.9M before Steam's cut
$34.99
118k reviews
Mostly Positive
Action RPGLoot
Don't Starve
2013
Est. copies
≈ 7.2M–11.7M
SteamSpy 2M–5M
Est. revenue
$19.7M–$53.0M after Steam's cut $35.8M–$81.5M before Steam's cut
$9.99
114k reviews
Overwhelmingly Positive
SurvivalOpen World Survival Craft
Hotline Miami 2: Wrong Number
2015
Est. copies
≈ 3.9M–6.4M
SteamSpy 2M–5M
Est. revenue
$16.2M–$43.5M after Steam's cut $29.4M–$66.9M before Steam's cut
$14.99
80k reviews
Very Positive
Great SoundtrackGore
Prison Architect
2015
Est. copies
≈ 3.8M–6.1M
SteamSpy 5M–10M
Est. revenue
$31.0M–$83.3M after Steam's cut $56.3M–$128.2M before Steam's cut
$29.99
77k reviews
Very Positive
SimulationBuilding

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