How many copies did Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype sell?

4k to 6k copies, based on its 150 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype make?

Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype is free to play, so there is no copy-sales revenue to estimate.

How big is Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype?

Estimated owners: ≈ 4k–6k; from 150 reviews (Mostly 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 Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype out and predicted the genre from its 8 similar games. Every figure here, including Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 2.3M–2.4M

best case 27.3M (Phasmophobia)

Games like Cthulhu: Death Escape / 克苏鲁:死亡逃脱 Prototype

The middle of these games

≈ 2.3M–2.4M copies

≈ $17.9M–$22.0M after Steam's cut

from ~54k 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.

No genre covers most of your similar games. The closest is Horror (4 of 8), so the genre you lead with is still undecided.

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: Phasmophobia at ≈ 20.8M–33.8M copies, ≈ $114.4M–$307.5M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Horror (4 of 8) and Psychological Horror (4 of 8).
The winners: Winners here lead with Horror + Psychological Horror, priced around $20. The breakout hits carry Online Co-Op + Co-op + Supernatural; a typical game here doesn't.
The era: The games you compared span 2010 to 2023, 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
UNO 2017	Est. copies ≈ 1.9M–3.0M SteamSpy 2M–5M	Est. revenue $5.1M–$13.8M after Steam's cut $9.3M–$21.2M before the cut	$9.99	54k reviews Mostly Positive	Card GameMultiplayer
Phasmophobia 2020	Est. copies ≈ 20.8M–33.8M 15x vs typical SteamSpy 10M–20M	Est. revenue $114.4M–$307.5M after Steam's cut $207.9M–$473.1M before the cut	$19.99	839k reviews Very Positive	HorrorOnline Co-Op
The Room 2014	Est. copies ≈ 1.8M–2.9M too small to compare SteamSpy 500k–1M	Est. revenue $2.4M–$6.6M after Steam's cut $4.4M–$10.1M before the cut	$4.99	32k reviews Overwhelmingly Positive	PuzzleMystery
Lobotomy Corporation \| Monster Management Simulation 2018	Est. copies ≈ 1.7M–2.8M SteamSpy 1M–2M	Est. revenue $11.9M–$32.0M after Steam's cut $21.6M–$49.2M before the cut	$24.99	57k reviews Very Positive	ManagementDifficult
Amnesia: The Dark Descent 2010	Est. copies ≈ 2.3M–3.7M too small to compare SteamSpy 2M–5M	Est. revenue $12.4M–$33.4M after Steam's cut $22.6M–$51.3M before the cut	$19.99	36k reviews Very Positive	HorrorGore
DREDGE 2023	Est. copies ≈ 1.4M–2.3M SteamSpy 1M–2M	Est. revenue $9.7M–$26.0M after Steam's cut $17.6M–$40.1M before the cut	$24.99	57k reviews Overwhelmingly Positive	ExplorationFishing
What Remains of Edith Finch 2017	Est. copies ≈ 1.8M–3.0M SteamSpy 500k–1M	Est. revenue $10.0M–$26.8M after Steam's cut $18.2M–$41.3M before the cut	$19.99	53k reviews Overwhelmingly Positive	Story RichAtmospheric
SOMA 2015	Est. copies ≈ 2.6M–4.2M SteamSpy 2M–5M	Est. revenue $21.2M–$57.0M after Steam's cut $38.5M–$87.7M before the cut	$29.99	53k reviews Overwhelmingly Positive	Horror Psychological Horror