How many copies did 9.03m sell?

72k to 117k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did 9.03m make?

9.03m is free to play, so there is no copy-sales revenue to estimate.

How big is 9.03m?

Estimated owners: ≈ 72k–117k; from 1k 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 9.03m out and predicted the genre from its 8 similar games. Every figure here, including 9.03m's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 401k–2.2M

best case 5.4M (Firewatch)

Games like 9.03m

The middle of these games

≈ 401k–2.2M copies

≈ $7.8M–$18.4M after Steam's cut

from ~15k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

6 of your 8 similar games are hits.

Best case: Firewatch at ≈ 4.1M–6.7M copies, ≈ $22.7M–$61.1M after Steam's cut.

The genre you'd be entering

Your set: Your set clusters on Exploration (8 of 8) and Walking Simulator (8 of 8).
The winners: Winners here lead with Story Rich + Walking Simulator, priced around $20.
The era: The games you compared span 2012 to 2024, and 2 of your 7 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
Dear Esther unreleased	Est. copies ≈ 152k–247k SteamSpy 100k–200k	Est. revenue Free	Free	6k reviews Mostly Positive	Walking SimulatorIndie
What Remains of Edith Finch 2017	Est. copies ≈ 1.8M–2.9M 3.4x vs typical SteamSpy 500k–1M	Est. revenue $10.0M–$26.8M after Steam's cut $18.1M–$41.2M before the cut	$19.99	53k reviews Overwhelmingly Positive	Story RichAtmospheric
Thirty Flights of Loving 2012	Est. copies ≈ 120k–195k SteamSpy 200k–500k	Est. revenue $165k–$444k after Steam's cut $300k–$683k before the cut	$4.99	2k reviews Mixed	First-PersonExperimental
Firewatch 2016	Est. copies ≈ 4.1M–6.7M 6.5x vs typical SteamSpy 2M–5M	Est. revenue $22.7M–$61.1M after Steam's cut $41.3M–$93.9M before the cut	$19.99	99k reviews Very Positive	AdventureAtmospheric
Aleph 2024	Est. copies ≈ 2k–3k too small to compare SteamSpy under 20k	Est. revenue $2k–$4k after Steam's cut $3k–$6k before the cut	$2.99	75 reviews Very Positive	ExplorationShort
Amnesia: A Machine for Pigs 2013	Est. copies ≈ 765k–1.2M SteamSpy 1M–2M	Est. revenue $4.2M–$11.3M after Steam's cut $7.7M–$17.4M before the cut	$19.99	12k reviews Mixed	Horror Walking Simulator
Gone Home 2013	Est. copies ≈ 1.2M–1.9M SteamSpy 500k–1M	Est. revenue $4.8M–$12.9M after Steam's cut $8.7M–$19.9M before the cut	$14.99	18k reviews Mostly Positive	Walking SimulatorShort
Purpose 1951 2024	Est. copies ≈ 1k–2k too small to compare SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$4k before the cut	$2.99	53 reviews Mostly Positive	ShortLinear