How much revenue did Prototype™ make?

$4.9M–$13.3M 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?

898k 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: ≈ 898k–1.5M; $4.9M–$13.3M after Steam's cut $9.0M–$20.4M before the cut; from 14k reviews (Very Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

Does this actually work?

We left Prototype™ out and predicted the genre from its 8 similar games. Every figure here, including Prototype™'s, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 5.9M–7.3M

best case 34.6M (Red Dead Redemption 2)

Games like Prototype™

The middle of these games

≈ 5.9M–7.3M copies

≈ $52.1M–$91.2M after Steam's cut

from ~138k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

All 8 of your similar games are hits.

Best case: Red Dead Redemption 2 at ≈ 26.4M–42.9M copies, ≈ $435.5M–$1170.8M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on 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.
The era: The games you compared 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 ≈ 5.0M–8.2M SteamSpy 20M–50M	Est. revenue Free	Free	203k reviews Very Positive	Open WorldAction
Middle-earth™: Shadow of Mordor™ 2014	Est. copies ≈ 5.4M–8.8M SteamSpy 5M–10M	Est. revenue $29.9M–$80.4M after Steam's cut $54.4M–$123.7M before the cut	$19.99	97k reviews Very Positive	Open WorldAction
Red Dead Redemption 2 2019	Est. copies ≈ 26.4M–42.9M 6.7x vs typical SteamSpy 10M–20M	Est. revenue $435.5M–$1170.8M after Steam's cut $791.7M–$1801.2M before the cut	$59.99	917k reviews Very Positive	Open WorldStory Rich
Middle-earth™: Shadow of War™ 2017	Est. copies ≈ 4.0M–6.5M SteamSpy 2M–5M	Est. revenue $55.3M–$148.7M after Steam's cut $100.5M–$228.7M before the 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 $94.4M–$253.9M after Steam's cut $171.7M–$390.6M before the cut	$59.99	188k reviews Very Positive	Open WorldRPG
POSTAL 2 2012	Est. copies ≈ 8.7M–14.1M SteamSpy 5M–10M	Est. revenue $23.9M–$64.3M after Steam's cut $43.5M–$98.9M before the cut	$9.99	138k reviews Overwhelmingly Positive	ViolentDark Humor
Days Gone 2021	Est. copies ≈ 2.9M–4.7M SteamSpy 2M–5M	Est. revenue $31.9M–$85.7M after Steam's cut $58.0M–$131.9M before the cut	$39.99	117k reviews Very Positive	Open WorldZombies
Grand Theft Auto IV: The Complete Edition 2020	Est. copies ≈ 5.0M–8.2M SteamSpy 5M–10M	Est. revenue $27.7M–$74.5M after Steam's cut $50.4M–$114.6M before the cut	$19.99	203k reviews Very Positive	Open WorldAction