How much revenue did Cave Story+ make?

$1.8M–$4.8M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Cave Story+ sell?

Q: How many copies did Cave Story+ sell?

430k to 698k copies, based on its 8k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 430k–698k; $1.8M–$4.8M after Steam's cut $3.2M–$7.3M before the cut; from 8k 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 Cave Story+ out and predicted the genre from its 4 similar games. Every figure here, including Cave Story+'s, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.9M–10.0M

best case 24.9M (Hollow Knight)

The Metroidvania genre

All 4 of your similar games are hits. A big, proven genre for a game like yours.

From a small set, so take it as a sketch.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 3.9M–10.0M copies

≈ $35.8M–$79.9M after Steam's cut

from ~110k reviews

Best case

≈ 19.0M–30.9M copies

Hollow Knight · ≈ $78.3M–$210.7M after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Metroidvania (3 of 4) and Platformer (3 of 4).
The winners: Winners here lead with Metroidvania + Souls-like, priced around $15.
The era: None of the games you compared shipped in the last two years; the newest is from 2020. That says more about your picks than about the market, so add newer similar games to read the timing.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Ori and the Blind Forest: Definitive Edition 2016	Est. copies ≈ 2.8M–4.6M SteamSpy 2M–5M	Est. revenue $15.6M–$42.1M after Steam's cut $28.4M–$64.7M before the cut	$19.99	71k reviews Overwhelmingly Positive	AtmosphericGreat Soundtrack
Ori and the Will of the Wisps 2020	Est. copies ≈ 3.8M–6.2M SteamSpy 2M–5M	Est. revenue $31.7M–$85.2M after Steam's cut $57.6M–$131.0M before the cut	$29.99	145k reviews Overwhelmingly Positive	BeautifulMetroidvania
INSIDE 2016	Est. copies ≈ 3.0M–4.9M SteamSpy 2M–5M	Est. revenue $20.6M–$55.5M after Steam's cut $37.5M–$85.4M before the cut	$24.99	75k reviews Overwhelmingly Positive	2.5DPuzzle-Platformer
Hollow Knight 2017	Est. copies ≈ 19.0M–30.9M 5.0x vs typical SteamSpy 5M–10M	Est. revenue $78.3M–$210.7M after Steam's cut $142.5M–$324.1M before the cut	$14.99	553k reviews Overwhelmingly Positive	Metroidvania Souls-like