How many copies did Electronic Super Joy 2 sell?

21k to 34k copies, based on its 729 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Electronic Super Joy 2 make?

Electronic Super Joy 2 is free to play, so there is no copy-sales revenue to estimate.

How big is Electronic Super Joy 2?

Estimated owners: ≈ 21k–34k; from 729 reviews (Very 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 Electronic Super Joy 2 out and predicted the genre from its 8 similar games. Every figure here, including Electronic Super Joy 2's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 4.3M–5.6M

best case 25.3M (Hollow Knight)

Games like Electronic Super Joy 2

The middle of these games

≈ 4.3M–5.6M copies

≈ $27.5M–$50.1M after Steam's cut

from ~76k 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 ≈ 19.2M–31.3M copies, ≈ $79.3M–$213.3M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Platformer (8 of 8) and Metroidvania (3 of 8).
The winners: Winners here lead with Metroidvania + Souls-like, priced around $15. The breakout hits carry Souls-like + Metroidvania + Difficult; a typical game here doesn't.
The era: The games you compared span 2011 to 2020, 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
Celeste 2018	Est. copies ≈ 4.4M–7.2M 1.9x vs typical SteamSpy 2M–5M	Est. revenue $24.5M–$65.8M after Steam's cut $44.5M–$101.2M before the cut	$19.99	146k reviews Overwhelmingly Positive	Precision PlatformerDifficult
Hollow Knight 2017	Est. copies ≈ 19.2M–31.3M 7.4x vs typical SteamSpy 5M–10M	Est. revenue $79.3M–$213.3M after Steam's cut $144.2M–$328.1M before the cut	$14.99	559k reviews Overwhelmingly Positive	Metroidvania Souls-like
Ori and the Will of the Wisps 2020	Est. copies ≈ 3.6M–5.9M 1.9x vs typical SteamSpy 2M–5M	Est. revenue $29.9M–$80.3M after Steam's cut $54.3M–$123.5M before the cut	$29.99	146k reviews Overwhelmingly Positive	BeautifulMetroidvania
LIMBO 2011	Est. copies ≈ 3.9M–6.4M SteamSpy 2M–5M	Est. revenue $13.4M–$36.1M after Steam's cut $24.4M–$55.6M before the cut	$12.49	62k reviews Very Positive	Puzzle-PlatformerIndie
BattleBlock Theater® 2014	Est. copies ≈ 4.1M–6.6M SteamSpy 2M–5M	Est. revenue $16.8M–$45.2M after Steam's cut $30.6M–$69.6M before the cut	$14.99	73k reviews Overwhelmingly Positive	Co-op Platformer
Katana ZERO 2019	Est. copies ≈ 2.2M–3.6M SteamSpy 2M–5M	Est. revenue $9.0M–$24.2M after Steam's cut $16.4M–$37.3M before the cut	$14.99	76k reviews Overwhelmingly Positive	Pixel GraphicsAction
Cuphead 2017	Est. copies ≈ 7.6M–12.3M 2.9x vs typical SteamSpy 5M–10M	Est. revenue $41.7M–$112.1M after Steam's cut $75.8M–$172.5M before the cut	$19.99	220k reviews Overwhelmingly Positive	DifficultCartoon
Ori and the Blind Forest: Definitive Edition 2016	Est. copies ≈ 3.0M–4.8M SteamSpy 2M–5M	Est. revenue $16.3M–$43.9M after Steam's cut $29.7M–$67.6M before the cut	$19.99	71k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack