How many copies did Pigbook sell?

223 to 363 copies, based on its 9 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Pigbook make?

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

How big is Pigbook?

Estimated owners: ≈ 223–363; from 9 reviews (9 user reviews); Thin evidence: 9 reviews. That range swings on one or two people, so read it as a hint, not a measurement.

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 Pigbook out and predicted the genre from its 8 similar games. Every figure here, including Pigbook's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 501k–857k

best case 25.3M (Hollow Knight)

Games like Pigbook

The middle of these games

≈ 501k–857k copies

≈ $3.6M–$4.6M after Steam's cut

from ~12k 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.

Best case: Hollow Knight at ≈ 19.3M–31.3M copies, ≈ $79.5M–$213.7M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Metroidvania (8 of 8) and Platformer (8 of 8).
The winners: Winners here lead with Metroidvania + Platformer, priced around $17. The breakout hits carry Singleplayer + Great Soundtrack + Atmospheric; a typical game here doesn't.
The era: The games you compared span 2011 to 2022, 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
Dust: An Elysian Tail 2013	Est. copies ≈ 1.2M–2.0M 1.6x vs typical SteamSpy 1M–2M	Est. revenue $5.0M–$13.4M after Steam's cut $9.0M–$20.6M before the cut	$14.99	19k reviews Overwhelmingly Positive	ActionPlatformer
SteamWorld Dig 2013	Est. copies ≈ 696k–1.1M SteamSpy 500k–1M	Est. revenue $1.9M–$5.1M after Steam's cut $3.5M–$7.9M before the cut	$9.99	11k reviews Very Positive	PlatformerMining
Rogue Legacy 2 2022	Est. copies ≈ 375k–610k SteamSpy 1M–2M	Est. revenue $2.6M–$6.9M after Steam's cut $4.7M–$10.7M before the cut	$24.99	15k reviews Very Positive	ArcadeMetroidvania
Ori and the Blind Forest: Definitive Edition 2016	Est. copies ≈ 3.0M–4.8M 5.9x vs typical SteamSpy 2M–5M	Est. revenue $16.4M–$44.0M after Steam's cut $29.7M–$67.6M before the cut	$19.99	71k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack
Hollow Knight 2017	Est. copies ≈ 19.3M–31.3M 46x vs typical SteamSpy 5M–10M	Est. revenue $79.5M–$213.7M after Steam's cut $144.5M–$328.8M before the cut	$14.99	561k reviews Overwhelmingly Positive	Metroidvania Souls-like
The Messenger 2018	Est. copies ≈ 402k–653k SteamSpy 500k–1M	Est. revenue $2.2M–$5.9M after Steam's cut $4.0M–$9.1M before the cut	$19.99	13k reviews Very Positive	RetroPlatformer
Cave Story+ 2011	Est. copies ≈ 526k–854k SteamSpy 200k–500k	Est. revenue $2.2M–$5.8M after Steam's cut $3.9M–$9.0M before the cut	$14.99	8k reviews Very Positive	Platformer Metroidvania
SteamWorld Dig 2 2017	Est. copies ≈ 313k–509k SteamSpy 200k–500k	Est. revenue $1.7M–$4.6M after Steam's cut $3.1M–$7.1M before the cut	$19.99	9k reviews Overwhelmingly Positive	AdventureMetroidvania