How much revenue did Mary Skelter: Nightmares make?

$125k–$335k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Mary Skelter: Nightmares sell?

Q: How many copies did Mary Skelter: Nightmares sell?

18k to 29k copies, based on its 597 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 18k–29k; $125k–$335k after Steam's cut $227k–$516k before Steam's cut; from 597 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 Mary Skelter: Nightmares and predicted how it would do from its 8 similar games. Every figure here, including Mary Skelter: Nightmares's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 163k–267k

best case 446k (Ni no Kuni™ II: Revenant Kingdom)

Games like Mary Skelter: Nightmares

A typical game among these

≈ 163k–267k copies

≈ $1.3M–$1.7M after Steam's cut

from ~3k 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: Ni no Kuni™ II: Revenant Kingdom at ≈ 339k–552k copies, ≈ $7.5M–$20.1M 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 Anime (8 of 8) and JRPG (7 of 8).
The winners: Winners here lead with Anime, priced around $40. The breakout hits carry Singleplayer; a typical game here doesn't.
When they shipped: The similar games span 2010 to 2018, 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 38 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
Ni no Kuni™ II: Revenant Kingdom 2018	Est. copies ≈ 339k–552k 3.9x vs typical SteamSpy 500k–1M	Est. revenue $7.5M–$20.1M after Steam's cut $13.6M–$30.9M before Steam's cut	$79.98	11k reviews Very Positive	RPGJRPG
Ys Origin 2012	Est. copies ≈ 231k–376k SteamSpy 200k–500k	Est. revenue $1.3M–$3.4M after Steam's cut $2.3M–$5.3M before Steam's cut	$19.99	4k reviews Very Positive	RPGJRPG
Recettear: An Item Shop's Tale 2010	Est. copies ≈ 476k–774k 2.7x vs typical SteamSpy 500k–1M	Est. revenue $2.6M–$7.0M after Steam's cut $4.8M–$10.8M before Steam's cut	$19.99	8k reviews Overwhelmingly Positive	CapitalismAnime
Ys I & II Chronicles+ 2013	Est. copies ≈ 194k–316k SteamSpy 200k–500k	Est. revenue $802k–$2.2M after Steam's cut $1.5M–$3.3M before Steam's cut	$14.99	3k reviews Very Positive	JRPGAction
Aura Kingdom 2014	Est. copies ≈ 475k–772k 3.0x vs typical SteamSpy 2M–5M	Est. revenue Free	Free	8k reviews Mostly Positive	AnimeFree to Play
The Legend of Heroes: Trails in the Sky the 3rd 2017	Est. copies ≈ 89k–145k SteamSpy 100k–200k	Est. revenue $735k–$2.0M after Steam's cut $1.3M–$3.0M before Steam's cut	$29.99	3k reviews Very Positive	RPGJRPG
Ys: The Oath in Felghana 2012	Est. copies ≈ 135k–220k SteamSpy 100k–200k	Est. revenue $558k–$1.5M after Steam's cut $1.0M–$2.3M before Steam's cut	$14.99	2k reviews Very Positive	ActionGreat Soundtrack
The Legend of Heroes: Trails of Cold Steel 2017	Est. copies ≈ 204k–332k 2.1x vs typical SteamSpy 200k–500k	Est. revenue $2.2M–$6.0M after Steam's cut $4.1M–$9.3M before Steam's cut	$39.99	6k reviews Very Positive	JRPGAnime