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How many copies did Orbital Invaders sell?

Estimated copies sold
≈ 273–443
$74–$200 after Steam's cut $135–$307 before Steam's cut
from 11 reviews (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 Orbital Invaders and predicted how it would do from its 8 similar games. Every figure here, including Orbital Invaders's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 198k–465k
best case 1.2M (X4: Foundations)
Games like Orbital Invaders

A typical game among these

≈ 198k–465k copies

≈ $1.6M–$4.1M after Steam's cut

from ~6k 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: X4: Foundations at ≈ 920k–1.5M copies, ≈ $12.7M–$34.0M 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 5k reviews in their first month; the range was 2k to 12k.
The genre you'd be entering
These games
The similar games share Space (7 of 8) and Space Sim (6 of 8).
The winners
Winners here lead with Simulation + Space, priced around $45. The breakout hits carry Simulation + Flight + Economy; a typical game here doesn't.
When they shipped
The similar games span 2013 to 2025, and 2 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

Starpoint Gemini 2
2014
Est. copies
≈ 231k–375k
SteamSpy 500k–1M
Est. revenue
$2.2M–$6.0M after Steam's cut $4.0M–$9.2M before Steam's cut
$34.99
4k reviews
Mixed
SpaceSimulation
EVERSPACE™
2017
Est. copies
≈ 395k–642k
1.8x vs typical
SteamSpy 500k–1M
Est. revenue
$2.2M–$5.8M after Steam's cut $3.9M–$9.0M before Steam's cut
$19.99
11k reviews
Mostly Positive
SpaceAction Roguelike
X Rebirth
2013
Est. copies
≈ 462k–751k
SteamSpy 500k–1M
Est. revenue
$3.8M–$10.3M after Steam's cut $6.9M–$15.8M before Steam's cut
$29.99
7k reviews
Mixed
SimulationSpace
X4: Foundations
2018
Est. copies
≈ 920k–1.5M
4.8x 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
STAR WARS™: Squadrons
2020
Est. copies
≈ 699k–1.1M
4.5x vs typical
SteamSpy 1M–2M
Est. revenue
$7.7M–$20.7M after Steam's cut $14.0M–$31.8M before Steam's cut
$39.99
28k reviews
Mixed
FlightSpace
SpaceBourne 2
2025
Est. copies
≈ 128k–208k
SteamSpy 200k–500k
Est. revenue
$704k–$1.9M after Steam's cut $1.3M–$2.9M before Steam's cut
$19.99
5k reviews
Mostly Positive
Early AccessRPG
Exo One
2021
Est. copies
≈ 131k–213k
SteamSpy 200k–500k
Est. revenue
$612k–$1.6M after Steam's cut $1.1M–$2.5M before Steam's cut
$16.99
5k reviews
Very Positive
AtmosphericExploration
Void Crew
2024
Est. copies
≈ 210k–341k
SteamSpy 200k–500k
Est. revenue
$1.4M–$3.9M after Steam's cut $2.6M–$6.0M before Steam's cut
$24.99
8k reviews
Very Positive
Co-opMultiplayer

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