How much revenue did MOUTHOLE make?

MOUTHOLE is free to play, so there is no copy-sales revenue to estimate.

How many copies did MOUTHOLE sell?

Q: How many copies did MOUTHOLE sell?

5k to 8k copies, based on its 206 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 5k–8k; from 206 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 MOUTHOLE and predicted how it would do from its 8 similar games. Every figure here, including MOUTHOLE's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 649k–816k

best case 2.2M (Core Keeper)

Games like MOUTHOLE

A typical game among these

≈ 649k–816k copies

≈ $1.1M–$5.2M after Steam's cut

from ~16k 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.

No genre covers most of these similar games. The closest is Story Rich (4 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Core Keeper at ≈ 1.7M–2.7M copies, ≈ $9.3M–$24.9M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 4k reviews in their first month; the range was 1k to 39k.

The genre you'd be entering

These games: The similar games share Story Rich (4 of 8) and Exploration (3 of 8).
The winners: Winners here lead with Open World Survival Craft + Sandbox, priced around $20. The breakout hits carry Open World Survival Craft + Online Co-Op + Sandbox; a typical game here doesn't.
When they shipped: The similar games span 2013 to 2024, and 2 of the 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
Dome Keeper 2022	Est. copies ≈ 558k–906k SteamSpy 2M–5M	Est. revenue $2.8M–$7.4M after Steam's cut $5.0M–$11.4M before Steam's cut	$17.99	22k reviews Very Positive	SingleplayerPost-apocalyptic
Core Keeper 2024	Est. copies ≈ 1.7M–2.7M 4.2x vs typical SteamSpy 1M–2M	Est. revenue $9.3M–$24.9M after Steam's cut $16.9M–$38.4M before Steam's cut	$19.99	68k reviews Very Positive	Pixel GraphicsOpen World Survival Craft
ANIMAL WELL 2024	Est. copies ≈ 612k–995k 1.5x vs typical SteamSpy 200k–500k	Est. revenue $4.2M–$11.3M after Steam's cut $7.6M–$17.4M before Steam's cut	$24.99	25k reviews Overwhelmingly Positive	MetroidvaniaExploration
FEZ 2013	Est. copies ≈ 1.0M–1.7M SteamSpy 1M–2M	Est. revenue $2.8M–$7.6M after Steam's cut $5.1M–$11.7M before Steam's cut	$9.99	16k reviews Very Positive	PlatformerIndie
Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad 2015	Est. copies ≈ 490k–796k SteamSpy 100k–200k	Est. revenue $133k–$358k after Steam's cut $242k–$551k before Steam's cut	$0.99	10k reviews Overwhelmingly Positive	Arcade2D
Impostor Factory 2021	Est. copies ≈ 319k–519k SteamSpy 500k–1M	Est. revenue $877k–$2.4M after Steam's cut $1.6M–$3.6M before Steam's cut	$9.99	13k reviews Overwhelmingly Positive	Story RichEmotional
The Test 2020	Est. copies ≈ 499k–810k SteamSpy 500k–1M	Est. revenue $273k–$734k after Steam's cut $496k–$1.1M before Steam's cut	$1.99	20k reviews Overwhelmingly Positive	Choose Your Own AdventureSimulation
DISTRAINT: Deluxe Edition 2015	Est. copies ≈ 631k–1.0M SteamSpy 2M–5M	Est. revenue $866k–$2.3M after Steam's cut $1.6M–$3.6M before Steam's cut	$4.99	13k reviews Very Positive	IndiePsychological Horror