How much revenue did Quantum Conundrum make?

$337k–$905k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Quantum Conundrum sell?

Q: How many copies did Quantum Conundrum sell?

136k to 221k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 136k–221k; $337k–$905k after Steam's cut $612k–$1.4M before Steam's cut; from 2k 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 Quantum Conundrum and predicted how it would do from its 8 similar games. Every figure here, including Quantum Conundrum's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 632k–898k

best case 38.8M (Portal 2)

Games like Quantum Conundrum

A typical game among these

≈ 632k–898k copies

≈ $2.6M–$4.2M after Steam's cut

from ~17k 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: Portal 2 at ≈ 29.5M–48.0M copies, ≈ $81.1M–$218.1M 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 Puzzle (7 of 8) and Puzzle-Platformer (6 of 8).
The winners: Winners here lead with Puzzle, priced around $20.
When they shipped: The similar games span 2007 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
Supraland 2019	Est. copies ≈ 446k–725k SteamSpy 500k–1M	Est. revenue $2.5M–$6.6M after Steam's cut $4.5M–$10.2M before Steam's cut	$19.99	16k reviews Overwhelmingly Positive	Puzzle-PlatformerExploration
Little Nightmares 2017	Est. copies ≈ 4.0M–6.5M 6.7x vs typical SteamSpy 5M–10M	Est. revenue $22.1M–$59.3M after Steam's cut $40.1M–$91.3M before Steam's cut	$19.99	117k reviews Very Positive	HorrorAtmospheric
Refunct 2015	Est. copies ≈ 852k–1.4M SteamSpy 200k–500k	Est. revenue $701k–$1.9M after Steam's cut $1.3M–$2.9M before Steam's cut	$2.99	17k reviews Overwhelmingly Positive	Parkour3D Platformer
It Takes Two 2021	Est. copies ≈ 6.7M–10.9M 15x vs typical SteamSpy 5M–10M	Est. revenue $73.7M–$198.3M after Steam's cut $134.1M–$305.0M before Steam's cut	$39.99	270k reviews Overwhelmingly Positive	Co-opMultiplayer
The Last Campfire 2021	Est. copies ≈ 516k–839k SteamSpy 500k–1M	Est. revenue $2.1M–$5.7M after Steam's cut $3.9M–$8.8M before Steam's cut	$14.99	21k reviews Overwhelmingly Positive	PuzzleAdventure
Portal 2 2011	Est. copies ≈ 29.5M–48.0M 27x vs typical SteamSpy 5M–10M	Est. revenue $81.1M–$218.1M after Steam's cut $147.5M–$335.6M before Steam's cut	$9.99	467k reviews Overwhelmingly Positive	Platformer Puzzle
Human Fall Flat 2016	Est. copies ≈ 9.5M–15.4M 13x vs typical SteamSpy 10M–20M	Est. revenue $52.0M–$139.7M after Steam's cut $94.5M–$214.9M before Steam's cut	$19.99	227k reviews Very Positive	Co-opFunny
Portal 2007	Est. copies ≈ 12.6M–20.5M 11x vs typical SteamSpy 10M–20M	Est. revenue $34.6M–$93.1M after Steam's cut $63.0M–$143.3M before Steam's cut	$9.99	199k reviews Overwhelmingly Positive	PuzzlePuzzle-Platformer