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How many copies did Duck Game sell?

Estimated copies sold
≈ 1.9M–3.1M
$6.8M–$18.3M after Steam's cut $12.4M–$28.2M before Steam's cut
from 39k 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 Duck Game and predicted how it would do from its 8 similar games. Every figure here, including Duck Game's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 5.1M–16.8M
best case 29.9M (Among Us)
Games like Duck Game

A typical game among these

≈ 5.1M–16.8M copies

≈ $28.1M–$73.8M after Steam's cut

from ~134k 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 Co-op (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: Among Us at ≈ 22.8M–37.0M copies, ≈ $31.3M–$84.0M after Steam's cut.

The genre you'd be entering
These games
The similar games share Co-op (4 of 8) and 4 Player Local (2 of 8).
The winners
Winners here lead with Social Deduction + Space, priced around $5.
When they shipped
The similar games span 2012 to 2025, 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

Rocket League®
2015
Est. copies
≈ 28.3M–46.0M
4.3x vs typical
SteamSpy 10M–20M
Est. revenue
Free
Free
580k reviews
Very Positive
MultiplayerFootball (Soccer)
Among Us
2018
Est. copies
≈ 22.8M–37.0M
5.6x 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
Human Fall Flat
2016
Est. copies
≈ 9.5M–15.4M
1.7x vs typical
SteamSpy 10M–20M
Est. revenue
$52.0M–$139.7M after Steam's cut $94.5M–$214.9M before Steam's cut
$19.99
227k reviews
Very Positive
Co-opFunny
BattleBlock Theater®
2014
Est. copies
≈ 4.1M–6.6M
SteamSpy 2M–5M
Est. revenue
$16.8M–$45.3M after Steam's cut $30.6M–$69.6M before Steam's cut
$14.99
73k reviews
Overwhelmingly Positive
Stick Fight: The Game
2017
Est. copies
≈ 4.3M–7.0M
SteamSpy 2M–5M
Est. revenue
$5.9M–$15.9M after Steam's cut $10.8M–$24.5M before Steam's cut
$4.99
125k reviews
Very Positive
MultiplayerFunny
Split Fiction
2025
Est. copies
≈ 3.2M–5.1M
SteamSpy 2M–5M
Est. revenue
$43.4M–$116.6M after Steam's cut $78.8M–$179.4M before Steam's cut
$49.99
127k reviews
Overwhelmingly Positive
Co-opSplit Screen
Castle Crashers®
2012
Est. copies
≈ 8.9M–14.5M
SteamSpy 5M–10M
Est. revenue
$36.7M–$98.7M after Steam's cut $66.8M–$151.9M before Steam's cut
$14.99
141k reviews
Overwhelmingly Positive
2DOnline Co-Op
Ravenfield
2017
Est. copies
≈ 2.8M–4.5M
SteamSpy 1M–2M
Est. revenue
$13.6M–$36.7M after Steam's cut $24.8M–$56.4M before Steam's cut
$17.99
80k reviews
Overwhelmingly Positive
FPSWar

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