How much revenue did Portal make?

$28.2M–$75.7M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Portal sell?

Q: How many copies did Portal sell?

10.3M to 16.7M copies, based on its 197k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 10.3M–16.7M; $28.2M–$75.7M after Steam's cut $51.2M–$116.5M before the cut; from 197k reviews (Overwhelmingly 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 Portal out and predicted the genre from its 8 similar games. Every figure here, including Portal's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 594k–1.1M

best case 31.7M (Portal 2)

The First-Person genre

All 8 of your similar games are hits. A healthy genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 594k–1.1M copies

≈ $1.9M–$4.7M after Steam's cut

from ~17k reviews

Best case

≈ 24.1M–39.2M copies

Portal 2 · ≈ $66.3M–$178.1M after Steam's cut

A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on First-Person (6 of 8) and Puzzle (5 of 8).
The winners: Winners here lead with First-Person, priced around $20. The breakout hits carry Dark Humor + Funny + Female Protagonist; a typical game here doesn't.
The era: The games you compared span 2011 to 2024, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

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Murders on the Yangtze River 2024	Est. copies ≈ 502k–816k SteamSpy 200k–500k	Est. revenue $2.1M–$5.6M after Steam's cut $3.8M–$8.6M before the cut	$14.99	21k reviews Overwhelmingly Positive	DetectiveAdventure
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The Talos Principle 2 2023	Est. copies ≈ 318k–516k SteamSpy 200k–500k	Est. revenue $2.6M–$7.0M after Steam's cut $4.8M–$10.8M before the cut	$29.99	13k reviews Very Positive	Puzzle Story Rich
Superliminal 2020	Est. copies ≈ 887k–1.4M 2.0x vs typical SteamSpy 1M–2M	Est. revenue $4.9M–$13.1M after Steam's cut $8.9M–$20.2M before the cut	$19.99	34k reviews Very Positive	PuzzleFirst-Person
Mountain 2014	Est. copies ≈ 847k–1.4M SteamSpy 500k–1M	Est. revenue $231k–$620k after Steam's cut $419k–$954k before the cut	$0.99	16k reviews Very Positive	SimulationIndie
Supraland 2019	Est. copies ≈ 436k–708k SteamSpy 500k–1M	Est. revenue $2.4M–$6.4M after Steam's cut $4.4M–$9.9M before the cut	$19.99	15k reviews Overwhelmingly Positive	Puzzle-PlatformerExploration