How many copies did External Visions sell?

2k to 4k copies, based on its 64 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did External Visions make?

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

How big is External Visions?

Estimated players who have it: ≈ 2k–4k; from 64 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 External Visions and predicted how it would do from its 8 similar games. Every figure here, including External Visions's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2.6M–5.4M

best case 25.6M (Hollow Knight)

Games like External Visions

A typical game among these

≈ 2.6M–5.4M copies

≈ $27.7M–$63.0M after Steam's cut

from ~70k 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: 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 (7 of 8) and Platformer (5 of 8).
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 2020. 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 61 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
Dead Cells 2018	Est. copies ≈ 5.6M–9.1M 2.6x vs typical SteamSpy 5M–10M	Est. revenue $38.4M–$103.2M after Steam's cut $69.8M–$158.8M before Steam's cut	$24.99	184k reviews Overwhelmingly Positive	AdventureAction Roguelike
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
Ori and the Blind Forest: Definitive Edition 2016	Est. copies ≈ 3.0M–4.8M SteamSpy 2M–5M	Est. revenue $16.4M–$44.1M after Steam's cut $29.8M–$67.8M before Steam's cut	$19.99	72k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack
Hollow Knight 2017	Est. copies ≈ 19.5M–31.6M 8.1x 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
Ori and the Will of the Wisps 2020	Est. copies ≈ 3.6M–5.9M 2.1x vs typical SteamSpy 2M–5M	Est. revenue $30.0M–$80.6M after Steam's cut $54.5M–$124.0M before Steam's cut	$29.99	147k reviews Overwhelmingly Positive	BeautifulMetroidvania
Bloodstained: Ritual of the Night 2019	Est. copies ≈ 1.2M–2.0M SteamSpy 1M–2M	Est. revenue $13.2M–$35.6M after Steam's cut $24.1M–$54.7M before Steam's cut	$39.99	42k reviews Very Positive	MetroidvaniaRPG
Rain World 2017	Est. copies ≈ 2.0M–3.2M SteamSpy 1M–2M	Est. revenue $13.6M–$36.7M after Steam's cut $24.8M–$56.4M before Steam's cut	$24.99	58k reviews Very Positive	DifficultAtmospheric
Ori and the Blind Forest 2015	Est. copies ≈ 2.9M–4.8M SteamSpy 2M–5M	Est. revenue Free	Free	60k reviews Very Positive	Great SoundtrackAtmospheric