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How many copies did Gnumz: Masters of Defense sell?

Estimated copies sold
≈ 10k–16k
$40k–$108k after Steam's cut $73k–$166k before Steam's cut
from 199 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 Gnumz: Masters of Defense and predicted how it would do from its 8 similar games. Every figure here, including Gnumz: Masters of Defense's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 670–17k
best case 45k (Mind Spheres)
Games like Gnumz: Masters of Defense

A typical game among these

≈ 670–17k copies

≈ $486–$89k after Steam's cut

from ~50 reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

None of the 8 similar games are hits.

Best case: Mind Spheres at ≈ 35k–56k copies, ≈ $47k–$128k after Steam's cut.

What their first month looked like
About half the games that made it here had over 7 reviews in their first month; the range was 2 to 13.
Games with under about 100 reviews in month one almost never recover.
The genre you'd be entering
These games
The similar games share Simulation (7 of 8) and Sports (6 of 8).
The winners
Winners here lead with Puzzle + Physics, priced around $5.
When they shipped
The similar games span 2016 to 2025, and 2 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 52 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

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Sizing up your own game? See how many copies games in its genre usually sell before you build it.