How much revenue did Ergastulum: Dungeon Nightmares III make?

$5k–$12k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Ergastulum: Dungeon Nightmares III sell?

Q: How many copies did Ergastulum: Dungeon Nightmares III sell?

2k to 3k copies, based on its 84 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 2k–3k; $5k–$12k after Steam's cut $8k–$19k before Steam's cut; from 84 reviews (Mostly 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 Ergastulum: Dungeon Nightmares III and predicted how it would do from its 8 similar games. Every figure here, including Ergastulum: Dungeon Nightmares III's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 6.6M–16.6M

best case 88.0M (Left 4 Dead 2)

Games like Ergastulum: Dungeon Nightmares III

A typical game among these

≈ 6.6M–16.6M copies

≈ $72.5M–$214.6M after Steam's cut

from ~195k 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.

Best case: Left 4 Dead 2 at ≈ 67.0M–108.9M copies, ≈ $184.1M–$495.0M after Steam's cut.

The genre you'd be entering

These games: The similar games share First-Person (5 of 8) and Horror (5 of 8).
The winners: Winners here lead with Zombies + Co-op, priced around $10.
When they shipped: The similar games span 2009 to 2021, 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
SCP: Secret Laboratory 2017	Est. copies ≈ 8.1M–13.1M SteamSpy 5M–10M	Est. revenue Free	Free	235k reviews Very Positive	Free to PlayMultiplayer
Outlast 2013	Est. copies ≈ 8.8M–14.4M SteamSpy 2M–5M	Est. revenue $36.4M–$98.0M after Steam's cut $66.3M–$150.7M before Steam's cut	$14.99	140k reviews Overwhelmingly Positive	HorrorFirst-Person
Killing Floor 2 2016	Est. copies ≈ 5.4M–8.8M SteamSpy 2M–5M	Est. revenue $44.4M–$119.4M after Steam's cut $80.8M–$183.7M before Steam's cut	$29.99	129k reviews Very Positive	ZombiesMultiplayer
Resident Evil Village 2021	Est. copies ≈ 3.8M–6.2M SteamSpy 2M–5M	Est. revenue $42.2M–$113.5M after Steam's cut $76.8M–$174.6M before Steam's cut	$39.99	155k reviews Overwhelmingly Positive	Survival Horror Horror
Left 4 Dead 2 2009	Est. copies ≈ 67.0M–108.9M 5.4x vs typical SteamSpy 50M–100M	Est. revenue $184.1M–$495.0M after Steam's cut $334.7M–$761.6M before Steam's cut	$9.99	1.1M reviews Overwhelmingly Positive	ZombiesCo-op
Hunt: Showdown 1896 2019	Est. copies ≈ 8.0M–13.1M SteamSpy 10M–20M	Est. revenue $66.3M–$178.3M after Steam's cut $120.6M–$274.4M before Steam's cut	$29.99	279k reviews Mostly Positive	Open WorldExtraction Shooter
Metro Exodus 2020	Est. copies ≈ 3.4M–5.5M SteamSpy 2M–5M	Est. revenue $27.9M–$74.9M after Steam's cut $50.7M–$115.3M before Steam's cut	$29.99	136k reviews Very Positive	Post-apocalypticFPS
Dying Light 2015	Est. copies ≈ 24.2M–39.3M 2.5x vs typical SteamSpy 10M–20M	Est. revenue $166.4M–$447.4M after Steam's cut $302.5M–$688.3M before Steam's cut	$24.99	496k reviews Overwhelmingly Positive	ZombiesSurvival Horror