How much revenue did Mercury Fallen make?

$55k–$147k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Mercury Fallen sell?

Q: How many copies did Mercury Fallen sell?

8k to 13k copies, based on its 320 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 8k–13k; $55k–$147k after Steam's cut $99k–$226k before Steam's cut; from 320 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 Mercury Fallen and predicted how it would do from its 8 similar games. Every figure here, including Mercury Fallen's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 479k–955k

best case 3.0M (Dyson Sphere Program)

Games like Mercury Fallen

A typical game among these

≈ 479k–955k copies

≈ $4.8M–$9.3M after Steam's cut

from ~15k 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: Dyson Sphere Program at ≈ 2.3M–3.7M copies, ≈ $12.5M–$33.7M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 13k reviews in their first month; the range was 4k to 26k.

The genre you'd be entering

These games: The similar games share Simulation (5 of 8) and Sandbox (4 of 8).
The winners: Winners here lead with Automation + Space, priced around $20. The breakout hits carry Automation + Resource Management + Base-Building; a typical game here doesn't.
When they shipped: The similar games span 2012 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
Dyson Sphere Program 2021	Est. copies ≈ 2.3M–3.7M 6.3x vs typical SteamSpy 2M–5M	Est. revenue $12.5M–$33.7M after Steam's cut $22.8M–$51.9M before Steam's cut	$19.99	92k reviews Overwhelmingly Positive	AutomationSpace
Soccer Online: Ball 3D 2017	Est. copies ≈ 368k–597k SteamSpy 1M–2M	Est. revenue $100k–$269k after Steam's cut $182k–$414k before Steam's cut	$0.99	11k reviews Very Positive	SportsFootball (Soccer)
X4: Foundations 2018	Est. copies ≈ 920k–1.5M 2.1x vs typical SteamSpy 1M–2M	Est. revenue $12.7M–$34.0M after Steam's cut $23.0M–$52.3M before Steam's cut	$49.99	30k reviews Mostly Positive	Space SimSimulation
Sins of a Solar Empire®: Rebellion 2012	Est. copies ≈ 1.0M–1.7M SteamSpy 2M–5M	Est. revenue $5.7M–$15.3M after Steam's cut $10.3M–$23.5M before Steam's cut	$19.99	16k reviews Very Positive	ManagementDiplomacy
Going Medieval 2026	Est. copies ≈ 535k–869k SteamSpy 500k–1M	Est. revenue $4.4M–$11.9M after Steam's cut $8.0M–$18.2M before Steam's cut	$29.99	22k reviews Very Positive	RPGEarly Access
Galactic Civilizations III 2015	Est. copies ≈ 508k–825k SteamSpy 1M–2M	Est. revenue $4.2M–$11.3M after Steam's cut $7.6M–$17.3M before Steam's cut	$29.99	10k reviews Mostly Positive	AliensSci-fi
Stranded: Alien Dawn 2023	Est. copies ≈ 286k–464k SteamSpy 200k–500k	Est. revenue $2.8M–$7.4M after Steam's cut $5.0M–$11.4M before Steam's cut	$34.99	12k reviews Very Positive	SurvivalBase-Building
Avorion 2020	Est. copies ≈ 362k–588k SteamSpy 500k–1M	Est. revenue $2.5M–$6.7M after Steam's cut $4.5M–$10.3M before Steam's cut	$24.99	15k reviews Very Positive	ExplorationSandbox