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How many copies did Polygeddon sell?

Estimated copies sold
≈ 2k–3k
$2k–$4k after Steam's cut $3k–$6k before Steam's cut
from 75 reviews (Mixed)

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 Polygeddon and predicted how it would do from its 8 similar games. Every figure here, including Polygeddon's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 5.2M–6.4M
best case 88.0M (Left 4 Dead 2)
Games like Polygeddon

A typical game among these

≈ 5.2M–6.4M copies

≈ $30.3M–$48.9M after Steam's cut

from ~79k 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.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: Left 4 Dead 2 at ≈ 67.0M–108.9M copies, ≈ $184.1M–$495.0M 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 Zombies (8 of 8) and Survival (6 of 8).
The winners
Winners here lead with Survival + Zombies, priced around $35. The breakout hits carry Survival + Open World + Open World Survival Craft; a typical game here doesn't.
When they shipped
The similar games span 2008 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

The Walking Dead
2012
Est. copies
≈ 5.1M–8.3M
SteamSpy 2M–5M
Est. revenue
$21.0M–$56.5M after Steam's cut $38.2M–$86.9M before Steam's cut
$14.99
81k reviews
Overwhelmingly Positive
ZombiesStory Rich
No More Room in Hell
2013
Est. copies
≈ 4.8M–7.9M
SteamSpy 5M–10M
Est. revenue
Free
Free
77k reviews
Very Positive
Free to PlayZombies
Project Zomboid
2013
Est. copies
≈ 30.5M–49.6M
6.1x vs typical
SteamSpy 10M–20M
Est. revenue
$209.9M–$564.4M after Steam's cut $381.6M–$868.2M before Steam's cut
$24.99
483k reviews
Very Positive
SurvivalZombies
DayZ
2018
Est. copies
≈ 14.3M–23.2M
6.0x vs typical
SteamSpy 10M–20M
Est. revenue
$196.4M–$527.9M after Steam's cut $357.0M–$812.2M before Steam's cut
$49.99
470k reviews
Mostly Positive
SurvivalOpen World
Left 4 Dead 2
2009
Est. copies
≈ 67.0M–108.9M
13x 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
Left 4 Dead
2008
Est. copies
≈ 4.3M–7.0M
SteamSpy 5M–10M
Est. revenue
$11.9M–$31.9M after Steam's cut $21.5M–$49.0M before Steam's cut
$9.99
68k reviews
Overwhelmingly Positive
ZombiesCo-op
Days Gone
2021
Est. copies
≈ 2.9M–4.7M
SteamSpy 2M–5M
Est. revenue
$32.0M–$86.0M after Steam's cut $58.2M–$132.3M before Steam's cut
$39.99
117k reviews
Very Positive
Open WorldZombies
7 Days to Die
2024
Est. copies
≈ 9.9M–16.2M
5.1x vs typical
SteamSpy 10M–20M
Est. revenue
$123.1M–$331.0M after Steam's cut $223.8M–$509.2M before Steam's cut
$44.99
401k reviews
Very Positive
SurvivalZombies

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