How much revenue did Book of Demons make?

$2.0M–$5.3M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Book of Demons sell?

Q: How many copies did Book of Demons sell?

287k to 467k copies, based on its 9k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 287k–467k; $2.0M–$5.3M after Steam's cut $3.6M–$8.2M before Steam's cut; from 9k 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 Book of Demons and predicted how it would do from its 8 similar games. Every figure here, including Book of Demons's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 195k–474k

best case 10.1M (Hades)

Games like Book of Demons

A typical game among these

≈ 195k–474k copies

≈ $1.8M–$4.2M after Steam's cut

from ~6k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

7 of the 8 similar games are hits.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: Hades at ≈ 7.7M–12.5M copies, ≈ $52.9M–$142.2M 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 22k reviews in their first month; the range was 12 to 102k.

The genre you'd be entering

These games: The similar games share Rogue-like (5 of 8) and Roguelike Deckbuilder (5 of 8).
The winners: Winners here lead with Action Roguelike + Rogue-lite, priced around $25. The breakout hits carry Hack and Slash + Action RPG + MMORPG; 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
Hades 2020	Est. copies ≈ 7.7M–12.5M 53x vs typical SteamSpy 5M–10M	Est. revenue $52.9M–$142.2M after Steam's cut $96.1M–$218.7M before Steam's cut	$24.99	310k reviews Overwhelmingly Positive	Action RoguelikeRogue-lite
Path of Exile 2 2024	Est. copies ≈ 5.6M–9.1M 39x vs typical SteamSpy 20M–50M	Est. revenue $46.4M–$124.6M after Steam's cut $84.3M–$191.7M before Steam's cut	$29.99	227k reviews Mostly Positive	Action RPGHack and Slash
Path of Exile 2013	Est. copies ≈ 15.8M–25.7M 43x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	250k reviews Very Positive	Free to PlayDark Fantasy
Slay the Spire 2019	Est. copies ≈ 6.3M–10.3M 38x vs typical SteamSpy 5M–10M	Est. revenue $43.5M–$116.9M after Steam's cut $79.0M–$179.8M before Steam's cut	$24.99	220k reviews Overwhelmingly Positive	Roguelike DeckbuilderCard Game
School of Magic: Deck and Slash Prologue 2020	Est. copies ≈ 1k–2k too small to compare SteamSpy under 20k	Est. revenue Free	Free	41 reviews Positive	Roguelike DeckbuilderHack and Slash
Hand of Fate 2 2017	Est. copies ≈ 200k–326k SteamSpy 200k–500k	Est. revenue $1.7M–$4.4M after Steam's cut $3.0M–$6.8M before Steam's cut	$29.99	6k reviews Very Positive	RPGRoguelike Deckbuilder
Hand of Fate 2015	Est. copies ≈ 522k–848k 1.8x vs typical SteamSpy 500k–1M	Est. revenue $2.9M–$7.7M after Steam's cut $5.2M–$11.9M before Steam's cut	$19.99	11k reviews Very Positive	Roguelike Deckbuilder Rogue-like
Dice & Fold 2024	Est. copies ≈ 97k–158k SteamSpy 100k–200k	Est. revenue $347k–$934k after Steam's cut $631k–$1.4M before Steam's cut	$12.99	4k reviews Very Positive	Card BattlerDungeon Crawler