How many copies did StarOS sell?

3k to 5k copies, based on its 118 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did StarOS make?

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

How big is StarOS?

Estimated players who have it: ≈ 3k–5k; from 118 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 StarOS and predicted how it would do from its 8 similar games. Every figure here, including StarOS's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2k–17k

best case 6.9M (Elite Dangerous)

Games like StarOS

A typical game among these

≈ 2k–17k copies

≈ $2k–$167k after Steam's cut

from ~189 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: Elite Dangerous at ≈ 5.3M–8.5M copies, ≈ $28.9M–$77.8M after Steam's cut.

What their first month looked like

About half the games that made it here had over 4 reviews in their first month; the range was 2 to 14.

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

The genre you'd be entering

These games: The similar games share Simulation (8 of 8) and Space (7 of 8).
The winners: Winners here lead with Space Sim + Space, priced around $20.
When they shipped: The similar games span 2015 to 2024, 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 61 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
Elite Dangerous 2015	Est. copies ≈ 5.3M–8.5M 570x vs typical SteamSpy 2M–5M	Est. revenue $28.9M–$77.8M after Steam's cut $52.6M–$119.6M before Steam's cut	$19.99	108k reviews Mostly Positive	Space SimSpace
Beam Eye Tracker 2023	Est. copies ≈ 26k–42k 5.5x vs typical SteamSpy under 20k	Est. revenue $213k–$573k after Steam's cut $388k–$882k before Steam's cut	$29.99	1k reviews Very Positive	SimulationUtilities
Star Trek: Starfleet Command Gold Edition 2016	Est. copies ≈ 9k–15k SteamSpy 50k–100k	Est. revenue $50k–$133k after Steam's cut $90k–$205k before Steam's cut	$19.99	217 reviews Mixed	StrategySimulation
Endless Universe 2 PC Live Wallpaper 2019	Est. copies ≈ 1k–2k SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$5k before Steam's cut	$2.99	51 reviews Mixed	UtilitiesDesign & Illustration
3D Earth Time Lapse PC Live Wallpaper 2018	Est. copies ≈ 6k–9k SteamSpy 50k–100k	Est. revenue $5k–$13k after Steam's cut $9k–$20k before Steam's cut	$2.99	191 reviews Mixed	UtilitiesDesign & Illustration
Planet Evolution PC Live Wallpaper 2019	Est. copies ≈ 5k–9k SteamSpy 50k–100k	Est. revenue $4k–$12k after Steam's cut $8k–$18k before Steam's cut	$2.99	187 reviews Mostly Positive	Design & IllustrationUtilities
Solar System Simulator 2024	Est. copies ≈ 570–927 SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$5k before Steam's cut	$7.99	23 reviews Positive	SimulationSpace Sim
Cosmic Journey PC Live Wallpaper 2020	Est. copies ≈ 1k–2k SteamSpy under 20k	Est. revenue $358–$962 after Steam's cut $650–$1k before Steam's cut	$0.99	53 reviews Mixed	Design & IllustrationUtilities