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How many copies did Alien Shooter sell?

Estimated copies sold
≈ 302k–490k
$414k–$1.1M after Steam's cut $752k–$1.7M before Steam's cut
from 5k reviews (Overwhelmingly 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 Alien Shooter and predicted how it would do from its 8 similar games. Every figure here, including Alien Shooter's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 12.1M–35.6M
best case 37.9M (HELLDIVERS™ 2)
Games like Alien Shooter

A typical game among these

≈ 12.1M–35.6M copies

≈ $181.0M–$462.7M after Steam's cut

from ~639k 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: HELLDIVERS™ 2 at ≈ 28.9M–46.9M copies, ≈ $317.6M–$854.0M after Steam's cut.

What their first month looked like
About half the games that made it here had over 143k reviews in their first month; the range was 16k to 251k.
The genre you'd be entering
These games
The similar games share Shooter (6 of 8) and FPS (5 of 8).
The winners
Winners here lead with Third-Person Shooter + Shooter, priced around $40.
When they shipped
The similar games span 2009 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

Ready or Not
2023
Est. copies
≈ 8.6M–14.0M
SteamSpy 5M–10M
Est. revenue
$118.4M–$318.4M after Steam's cut $215.3M–$489.8M before Steam's cut
$49.99
347k reviews
Mostly Positive
TacticalRealistic
Call of Duty®
2022
Est. copies
≈ 19.4M–31.5M
SteamSpy 50M–100M
Est. revenue
Free
Free
782k reviews
Mixed
FPSMultiplayer
HELLDIVERS™ 2
2024
Est. copies
≈ 28.9M–46.9M
1.8x vs typical
SteamSpy 20M–50M
Est. revenue
$317.6M–$854.0M after Steam's cut $577.5M–$1313.8M before Steam's cut
$39.99
1.2M reviews
Mostly Positive
Online Co-OpPvE
Dying Light
2015
Est. copies
≈ 24.2M–39.3M
SteamSpy 10M–20M
Est. revenue
$166.4M–$447.4M after Steam's cut $302.5M–$688.3M before Steam's cut
$24.99
496k reviews
Overwhelmingly Positive
ZombiesSurvival Horror
Deep Rock Galactic
2020
Est. copies
≈ 9.4M–15.3M
SteamSpy 5M–10M
Est. revenue
$77.8M–$209.2M after Steam's cut $141.5M–$321.9M before Steam's cut
$29.99
380k reviews
Overwhelmingly Positive
DwarfCo-op
Red Dead Redemption 2
2019
Est. copies
≈ 26.6M–43.2M
SteamSpy 10M–20M
Est. revenue
$438.4M–$1178.6M after Steam's cut $797.0M–$1813.3M before Steam's cut
$59.99
923k reviews
Very Positive
Open WorldStory Rich
Titanfall® 2
2020
Est. copies
≈ 7.1M–11.6M
SteamSpy 5M–10M
Est. revenue
$58.7M–$158.0M after Steam's cut $106.8M–$243.0M before Steam's cut
$29.99
287k reviews
Overwhelmingly Positive
FPSMechs
Left 4 Dead 2
2009
Est. copies
≈ 67.0M–108.9M
1.7x vs typical
SteamSpy 50M–100M
Est. revenue
$184.1M–$495.0M after Steam's cut $334.7M–$761.6M before Steam's cut
$9.99
1.1M reviews
Overwhelmingly Positive
ZombiesCo-op

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