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How many copies did Sonic Lost World sell?

Estimated copies sold
≈ 273k–444k
$2.3M–$6.1M after Steam's cut $4.1M–$9.3M before the cut
from 6k reviews (Mixed)

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 Sonic Lost World out and predicted the genre from its 8 similar games. Every figure here, including Sonic Lost World's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.0M–10.7M
best case 38.6M (Portal 2)
Games like Sonic Lost World

The middle of these games

≈ 3.0M–10.7M copies

≈ $27.3M–$93.3M after Steam's cut

from ~121k 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: Portal 2 at ≈ 29.4M–47.8M copies, ≈ $80.8M–$217.4M after Steam's cut.

What it took to get here
About half the games that made it here had over 19k reviews in their first month; the spread ran 16k to 63k.
The genre you'd be entering
Your set
Your set clusters on 3D Platformer (5 of 8) and Female Protagonist (5 of 8).
The winners
Winners here lead with Platformer + Puzzle, priced around $10.
The era
The games you compared span 2007 to 2025, and 2 of your 8 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

It Takes Two
2021
Est. copies
≈ 6.7M–10.8M
2.2x vs typical
SteamSpy 5M–10M
Est. revenue
$73.2M–$196.7M after Steam's cut $133.0M–$302.7M before the cut
$39.99
268k reviews
Overwhelmingly Positive
Co-opMultiplayer
Mirror's Edge™
2009
Est. copies
≈ 2.5M–4.0M
SteamSpy 2M–5M
Est. revenue
$13.7M–$36.7M after Steam's cut $24.8M–$56.5M before the cut
$19.99
39k reviews
Very Positive
Action-AdventureParkour
Portal
2007
Est. copies
≈ 12.5M–20.4M
1.6x vs typical
SteamSpy 10M–20M
Est. revenue
$34.5M–$92.6M after Steam's cut $62.6M–$142.5M before the cut
$9.99
198k reviews
Overwhelmingly Positive
PuzzlePuzzle-Platformer
Portal 2
2011
Est. copies
≈ 29.4M–47.8M
3.8x vs typical
SteamSpy 5M–10M
Est. revenue
$80.8M–$217.4M after Steam's cut $147.0M–$334.4M before the cut
$9.99
466k reviews
Overwhelmingly Positive
Split Fiction
2025
Est. copies
≈ 3.1M–5.1M
SteamSpy 2M–5M
Est. revenue
$43.1M–$115.8M after Steam's cut $78.3M–$178.1M before the cut
$49.99
126k reviews
Overwhelmingly Positive
Co-opSplit Screen
A Hat in Time
2017
Est. copies
≈ 1.8M–3.0M
SteamSpy 500k–1M
Est. revenue
$15.1M–$40.7M after Steam's cut $27.5M–$62.7M before the cut
$29.99
53k reviews
Overwhelmingly Positive
Cute3D Platformer
Little Nightmares
2017
Est. copies
≈ 4.0M–6.5M
SteamSpy 5M–10M
Est. revenue
$22.0M–$59.2M after Steam's cut $40.1M–$91.1M before the cut
$19.99
117k reviews
Very Positive
HorrorAtmospheric
Chained Together
2024
Est. copies
≈ 1.6M–2.6M
SteamSpy 2M–5M
Est. revenue
$2.2M–$5.8M after Steam's cut $3.9M–$8.9M before the cut
$4.99
63k reviews
Very Positive
Co-opAdventure

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