How much revenue did Mouthwashing make?

$3.4M–$9.1M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Mouthwashing sell?

Q: How many copies did Mouthwashing sell?

952k to 1.5M copies, based on its 38k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 952k–1.5M; $3.4M–$9.1M after Steam's cut $6.2M–$14.1M before the cut; from 38k 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 Mouthwashing out and predicted the genre from its 8 similar games. Every figure here, including Mouthwashing's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 2.0M–3.1M

best case 4.6M (MiSide)

Games like Mouthwashing

The middle of these games

≈ 2.0M–3.1M copies

≈ $20.9M–$23.8M after Steam's cut

from ~61k 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: MiSide at ≈ 3.5M–5.7M copies, ≈ $14.5M–$39.0M after Steam's cut.

What it took to get here

About half the games that made it here had over 24k reviews in their first month; the spread ran 8k to 64k.

The genre you'd be entering

Your set: Your set clusters on Horror (8 of 8) and Psychological Horror (8 of 8).
The winners: Winners here lead with Psychological Horror + Story Rich, priced around $15.
The era: The games you compared span 2010 to 2024, 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Amnesia: The Dark Descent 2010	Est. copies ≈ 2.3M–3.7M SteamSpy 2M–5M	Est. revenue $12.4M–$33.3M after Steam's cut $22.5M–$51.2M before the cut	$19.99	36k reviews Very Positive	HorrorGore
The Evil Within 2 2017	Est. copies ≈ 1.1M–1.7M SteamSpy 1M–2M	Est. revenue $11.7M–$31.5M after Steam's cut $21.3M–$48.4M before the cut	$39.99	31k reviews Very Positive	Horror Survival Horror
Outlast 2 2017	Est. copies ≈ 2.2M–3.6M SteamSpy 1M–2M	Est. revenue $12.2M–$32.7M after Steam's cut $22.1M–$50.3M before the cut	$19.99	64k reviews Very Positive	Horror Psychological Horror
SILENT HILL 2 2024	Est. copies ≈ 1.6M–2.6M SteamSpy 500k–1M	Est. revenue $30.6M–$82.4M after Steam's cut $55.7M–$126.7M before the cut	$69.99	64k reviews Very Positive	Psychological Horror Horror
Little Nightmares II 2021	Est. copies ≈ 1.4M–2.4M SteamSpy 1M–2M	Est. revenue $11.9M–$32.1M after Steam's cut $21.7M–$49.4M before the cut	$29.99	58k reviews Very Positive	HorrorAdventure
MiSide 2024	Est. copies ≈ 3.5M–5.7M 2.3x vs typical SteamSpy 1M–2M	Est. revenue $14.5M–$39.0M after Steam's cut $26.3M–$59.9M before the cut	$14.99	142k reviews Overwhelmingly Positive	Psychological HorrorCute
The Evil Within 2014	Est. copies ≈ 1.9M–3.1M SteamSpy 2M–5M	Est. revenue $10.3M–$27.8M after Steam's cut $18.8M–$42.7M before the cut	$19.99	34k reviews Very Positive	Horror Survival Horror
Getting Over It with Bennett Foddy 2017	Est. copies ≈ 2.8M–4.6M SteamSpy 2M–5M	Est. revenue $6.2M–$16.7M after Steam's cut $11.3M–$25.8M before the cut	$7.99	82k reviews Very Positive	Psychological HorrorDifficult