How much revenue did Marble World make?

$183k–$492k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Marble World sell?

Q: How many copies did Marble World sell?

33k to 54k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 33k–54k; $183k–$492k after Steam's cut $333k–$757k before Steam's cut; from 1k reviews (Very 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 Marble World and predicted how it would do from its 8 similar games. Every figure here, including Marble World's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 570–64k

best case 2.1M (Universe Sandbox)

Games like Marble World

A typical game among these

≈ 570–64k copies

≈ $2k–$18k after Steam's cut

from ~97 reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

2 of the 8 similar games are hits.

Best case: Universe Sandbox at ≈ 1.6M–2.6M copies, ≈ $13.0M–$35.0M after Steam's cut.

What their first month looked like

About half the games that made it here had over 7 reviews in their first month; the range was 5 to 68.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Physics (8 of 8) and Sandbox (8 of 8).
The winners: Winners here lead with Sandbox + Space, priced around $30.
When they shipped: The similar games span 2011 to 2026, and 1 of the 8 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
Universe Sandbox Legacy 2011	Est. copies ≈ 188k–306k 31x vs typical SteamSpy 500k–1M	Est. revenue Free	Free	3k reviews Very Positive	SimulationSandbox
Destructive Physics - Destruction Simulator 2021	Est. copies ≈ 3k–4k SteamSpy under 20k	Est. revenue $14k–$38k after Steam's cut $26k–$58k before Steam's cut	$19.99	103 reviews Mostly Positive	DestructionSandbox
Pure Gore (Sandbox&Playground) 2023	Est. copies ≈ 471–766 SteamSpy under 20k	Est. revenue $776–$2k after Steam's cut $1k–$3k before Steam's cut	$5.99	19 reviews Mixed	GoreSandbox
Art of Destruction 2022	Est. copies ≈ 2k–4k SteamSpy under 20k	Est. revenue $3k–$9k after Steam's cut $6k–$14k before Steam's cut	$4.99	96 reviews Mostly Positive	SandboxCasual
Universe Sandbox 2015	Est. copies ≈ 1.6M–2.6M 333x vs typical SteamSpy 1M–2M	Est. revenue $13.0M–$35.0M after Steam's cut $23.6M–$53.8M before Steam's cut	$29.99	32k reviews Overwhelmingly Positive	SandboxSpace
Demolition Master - Destruction Simulator 2023	Est. copies ≈ 322–524 SteamSpy under 20k	Est. revenue $884–$2k after Steam's cut $2k–$4k before Steam's cut	$9.99	13 reviews Mostly Positive	SimulationDestruction
Water Physics Simulation 2021	Est. copies ≈ 2k–4k SteamSpy under 20k	Est. revenue $6k–$16k after Steam's cut $11k–$25k before Steam's cut	$8.99	98 reviews Very Positive	SimulationSandbox
Destructive Contraptions 2026	Est. copies ≈ 149–242 SteamSpy under 20k	Est. revenue $327–$880 after Steam's cut $595–$1k before Steam's cut	$7.99	6 reviews 6 user reviews	SandboxPhysics