How much revenue did Prototype™ make?

$5.0M–$13.4M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Prototype™ sell?

Q: How many copies did Prototype™ sell?

904k to 1.5M copies, based on its 14k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 904k–1.5M; $5.0M–$13.4M after Steam's cut $9.0M–$20.5M before Steam's cut; from 14k 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 Prototype™ and predicted how it would do from its 8 similar games. Every figure here, including Prototype™'s, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 6.0M–7.4M

best case 34.9M (Red Dead Redemption 2)

Games like Prototype™

A typical game among these

≈ 6.0M–7.4M copies

≈ $52.5M–$91.4M after Steam's cut

from ~138k 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: Red Dead Redemption 2 at ≈ 26.6M–43.2M copies, ≈ $438.4M–$1178.6M 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 Open World (8 of 8) and Third Person (5 of 8).
The winners: Winners here lead with Open World + Story Rich, priced around $60. The breakout hits carry Western + Realistic + Story Rich; a typical game here doesn't.
When they shipped: The similar games span 2012 to 2021, and none of them 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Grand Theft Auto IV: Complete Edition unreleased	Est. copies ≈ 5.1M–8.2M SteamSpy 20M–50M	Est. revenue Free	Free	204k reviews Very Positive	Open WorldAction
Middle-earth™: Shadow of Mordor™ 2014	Est. copies ≈ 5.5M–8.9M SteamSpy 5M–10M	Est. revenue $30.0M–$80.6M after Steam's cut $54.5M–$124.0M before Steam's cut	$19.99	97k reviews Very Positive	Open WorldAction
Red Dead Redemption 2 2019	Est. copies ≈ 26.6M–43.2M 6.7x vs typical 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
Middle-earth™: Shadow of War™ 2017	Est. copies ≈ 4.0M–6.6M SteamSpy 2M–5M	Est. revenue $55.4M–$149.1M after Steam's cut $100.8M–$229.3M before Steam's cut	$49.99	117k reviews Very Positive	Open WorldAction
Assassin's Creed® Odyssey 2018	Est. copies ≈ 5.7M–9.3M SteamSpy 5M–10M	Est. revenue $94.8M–$254.9M after Steam's cut $172.4M–$392.1M before Steam's cut	$59.99	189k reviews Very Positive	Open WorldRPG
POSTAL 2 2012	Est. copies ≈ 8.7M–14.2M SteamSpy 5M–10M	Est. revenue $24.0M–$64.5M after Steam's cut $43.6M–$99.3M before Steam's cut	$9.99	138k reviews Overwhelmingly Positive	ViolentDark Humor
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
Grand Theft Auto IV: The Complete Edition 2020	Est. copies ≈ 5.1M–8.3M SteamSpy 5M–10M	Est. revenue $27.9M–$75.1M after Steam's cut $50.8M–$115.6M before Steam's cut	$19.99	205k reviews Very Positive	Open WorldAction