How much revenue did Islets make?

$351k–$945k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Islets sell?

Q: How many copies did Islets sell?

64k to 104k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 64k–104k; $351k–$945k after Steam's cut $639k–$1.5M before Steam's cut; from 3k reviews (Overwhelmingly 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 Islets and predicted how it would do from its 4 similar games. Every figure here, including Islets's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1.2M–8.3M

best case 25.6M (Hollow Knight)

Games like Islets

A typical game among these

≈ 1.2M–8.3M copies

≈ $11.4M–$63.1M after Steam's cut

from ~57k 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 4 of the similar games are hits.

This comes from a small set of games, so take it as a sketch.

Best case: Hollow Knight at ≈ 19.5M–31.6M copies, ≈ $80.3M–$215.8M after Steam's cut.

The genre you'd be entering

These games: The similar games share Metroidvania (4 of 4) and Souls-like (4 of 4).
The winners: Winners here lead with Metroidvania + Souls-like, priced around $15.
When they shipped: None of the similar games shipped in the last two years; the newest is from 2021. That says more about which games were found than about the market.

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 43 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
Hollow Knight 2017	Est. copies ≈ 19.5M–31.6M 9.9x vs typical SteamSpy 5M–10M	Est. revenue $80.3M–$215.8M after Steam's cut $145.9M–$332.0M before Steam's cut	$14.99	566k reviews Overwhelmingly Positive	Metroidvania Souls-like
GRIME 2021	Est. copies ≈ 169k–275k SteamSpy 200k–500k	Est. revenue $1.2M–$3.1M after Steam's cut $2.1M–$4.8M before Steam's cut	$24.99	7k reviews Very Positive	Metroidvania Souls-like
Blasphemous 2019	Est. copies ≈ 2.0M–3.2M SteamSpy 1M–2M	Est. revenue $18.8M–$50.7M after Steam's cut $34.3M–$78.0M before Steam's cut	$34.99	68k reviews Very Positive	MetroidvaniaPixel Graphics
ENDER LILIES: Quietus of the Knights 2021	Est. copies ≈ 1.1M–1.9M SteamSpy 1M–2M	Est. revenue $7.9M–$21.2M after Steam's cut $14.3M–$32.6M before Steam's cut	$24.99	46k reviews Very Positive	MetroidvaniaFemale Protagonist