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How many copies did Rocket Science sell?

Estimated copies sold
≈ 5k–8k
$25k–$68k after Steam's cut $46k–$105k before the cut
from 175 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 Rocket Science out and predicted the genre from its 8 similar games. Every figure here, including Rocket Science's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 5.4M–9.2M
best case 21.6M (No Man's Sky)
The Space genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game
≈ 5.4M–9.2M copies
≈ $47.2M–$151.8M after Steam's cut
from ~141k reviews
Best case
≈ 16.5M–26.8M copies
No Man's Sky · ≈ $271.9M–$731.1M after Steam's cut
The genre you'd be entering
Your set
Your set clusters on Space (7 of 8) and Exploration (5 of 8).
The winners
Winners here lead with Open World + Open World Survival Craft, priced around $60.
The era
The games you compared span 2008 to 2019, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Kerbal Space Program
2015
Est. copies
≈ 6.7M–10.9M
SteamSpy 2M–5M
Est. revenue
$73.8M–$198.5M after Steam's cut $134.2M–$305.4M before the cut
$39.99
145k reviews
Overwhelmingly Positive
SpaceSimulation
No Man's Sky
2016
Est. copies
≈ 16.5M–26.8M
2.9x vs typical
SteamSpy 5M–10M
Est. revenue
$271.9M–$731.1M after Steam's cut $494.4M–$1124.8M before the cut
$59.99
412k reviews
Very Positive
Open WorldOpen World Survival Craft
ASTRONEER
2019
Est. copies
≈ 4.0M–6.5M
SteamSpy 2M–5M
Est. revenue
$32.9M–$88.6M after Steam's cut $59.9M–$136.3M before the cut
$29.99
139k reviews
Very Positive
MultiplayerOpen World
SPORE™
2008
Est. copies
≈ 3.8M–6.1M
SteamSpy 2M–5M
Est. revenue
$20.6M–$55.5M after Steam's cut $37.5M–$85.3M before the cut
$19.99
72k reviews
Very Positive
God GameOpen World
Oxygen Not Included
2019
Est. copies
≈ 4.1M–6.7M
SteamSpy 2M–5M
Est. revenue
$28.2M–$75.9M after Steam's cut $51.4M–$116.8M before the cut
$24.99
143k reviews
Overwhelmingly Positive
Colony SimBase-Building
Elite Dangerous
2015
Est. copies
≈ 5.0M–8.1M
SteamSpy 2M–5M
Est. revenue
$27.3M–$73.3M after Steam's cut $49.6M–$112.8M before the cut
$19.99
107k reviews
Mostly Positive
Space SimSpace
Stellaris
2016
Est. copies
≈ 7.8M–12.7M
SteamSpy 2M–5M
Est. revenue
$107.8M–$290.0M after Steam's cut $196.1M–$446.1M before the cut
$49.99
196k reviews
Very Positive
Starbound
2016
Est. copies
≈ 4.9M–8.0M
SteamSpy 2M–5M
Est. revenue
$20.3M–$54.6M after Steam's cut $36.9M–$83.9M before the cut
$14.99
123k reviews
Very Positive
Open World Survival CraftSandbox

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