How much revenue did Sonic Adventure 2 make?

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

How many copies did Sonic Adventure 2 sell?

Q: How many copies did Sonic Adventure 2 sell?

1.8M to 2.9M copies, based on its 29k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.8M–2.9M; $5.0M–$13.4M after Steam's cut $9.0M–$20.6M before Steam's cut; from 29k 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 Sonic Adventure 2 and predicted how it would do from its 8 similar games. Every figure here, including Sonic Adventure 2's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2.1M–7.8M

best case 15.2M (Fall Guys)

Games like Sonic Adventure 2

A typical game among these

≈ 2.1M–7.8M copies

≈ $17.1M–$37.5M after Steam's cut

from ~46k 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: Fall Guys at ≈ 11.6M–18.9M copies.

The genre you'd be entering

These games: The similar games share 3D Platformer (5 of 8) and Platformer (4 of 8).
The winners: Winners here lead with Party Game + Battle Royale.
When they shipped: The similar games span 2007 to 2022, 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
A Hat in Time 2017	Est. copies ≈ 1.8M–3.0M SteamSpy 500k–1M	Est. revenue $15.2M–$40.8M after Steam's cut $27.6M–$62.8M before Steam's cut	$29.99	54k reviews Overwhelmingly Positive	Cute3D Platformer
Mirror's Edge™ 2009	Est. copies ≈ 2.5M–4.0M SteamSpy 2M–5M	Est. revenue $13.7M–$36.8M after Steam's cut $24.9M–$56.6M before Steam's cut	$19.99	39k reviews Very Positive	Action-AdventureParkour
Portal 2007	Est. copies ≈ 12.6M–20.5M 4.3x 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
Sonic Generations Collection 2011	Est. copies ≈ 1.6M–2.6M SteamSpy 500k–1M	Est. revenue Free	Free	26k reviews Very Positive	PlatformerGreat Soundtrack
Fall Guys 2020	Est. copies ≈ 11.6M–18.9M 10x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	468k reviews Very Positive	MultiplayerParty Game
Little Nightmares 2017	Est. copies ≈ 4.0M–6.5M 2.5x 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
A Story About My Uncle 2014	Est. copies ≈ 1.6M–2.7M SteamSpy 5M–10M	Est. revenue $6.8M–$18.2M after Steam's cut $12.3M–$27.9M before Steam's cut	$14.99	29k reviews Very Positive	AdventureFirst-Person
Sonic Frontiers 2022	Est. copies ≈ 709k–1.2M SteamSpy 500k–1M	Est. revenue $7.8M–$21.0M after Steam's cut $14.2M–$32.2M before Steam's cut	$39.99	29k reviews Very Positive	Great SoundtrackOpen World