How much revenue did INSIDE make?

$21.6M–$58.2M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did INSIDE sell?

Q: How many copies did INSIDE sell?

3.1M to 5.1M copies, based on its 76k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 3.1M–5.1M; $21.6M–$58.2M after Steam's cut $39.4M–$89.5M before the cut; from 76k reviews (Overwhelmingly 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 INSIDE out and predicted the genre from its 8 similar games. Every figure here, including INSIDE's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 500k–2.4M

best case 5.3M (Little Nightmares)

Games like INSIDE

The middle of these games

≈ 500k–2.4M copies

≈ $4.1M–$14.1M after Steam's cut

from ~21k 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: Little Nightmares at ≈ 4.0M–6.5M copies, ≈ $22.0M–$59.2M after Steam's cut.

The genre you'd be entering

Your set: Your set clusters on Puzzle (5 of 8) and Dark (3 of 8).
The winners: Winners here lead with Horror + Puzzle-Platformer, priced around $20.
The era: The games you compared span 2013 to 2021, 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
Ori and the Blind Forest 2015	Est. copies ≈ 2.9M–4.8M 2.8x vs typical SteamSpy 2M–5M	Est. revenue Free	Free	60k reviews Very Positive	Great SoundtrackAtmospheric
Trine 4: The Nightmare Prince 2019	Est. copies ≈ 412k–669k SteamSpy 1M–2M	Est. revenue $3.4M–$9.1M after Steam's cut $6.2M–$14.0M before the cut	$29.99	14k reviews Very Positive	Puzzle-PlatformerLocal Co-Op
Little Nightmares II 2021	Est. copies ≈ 1.4M–2.4M 2.7x vs typical SteamSpy 1M–2M	Est. revenue $11.9M–$32.1M after Steam's cut $21.7M–$49.4M before the cut	$29.99	58k reviews Very Positive	HorrorAdventure
FAR: Lone Sails 2018	Est. copies ≈ 802k–1.3M SteamSpy 500k–1M	Est. revenue $3.3M–$8.9M after Steam's cut $6.0M–$13.7M before the cut	$14.99	26k reviews Overwhelmingly Positive	AtmosphericAdventure
FEZ 2013	Est. copies ≈ 1.0M–1.7M SteamSpy 1M–2M	Est. revenue $2.8M–$7.6M after Steam's cut $5.1M–$11.7M before the cut	$9.99	16k reviews Very Positive	PlatformerIndie
Seen 2019	Est. copies ≈ 288k–467k SteamSpy 200k–500k	Est. revenue $78k–$210k after Steam's cut $142k–$324k before the cut	$0.99	10k reviews Very Positive	Early AccessIndie
Little Nightmares 2017	Est. copies ≈ 4.0M–6.5M 5.5x vs typical SteamSpy 5M–10M	Est. revenue $22.0M–$59.2M after Steam's cut $40.1M–$91.1M before the cut	$19.99	117k reviews Very Positive	HorrorAtmospheric
OPUS: Echo of Starsong - Full Bloom Edition 2021	Est. copies ≈ 234k–381k SteamSpy 200k–500k	Est. revenue $1.6M–$4.3M after Steam's cut $2.9M–$6.7M before the cut	$24.99	9k reviews Overwhelmingly Positive	Visual NovelEmotional