How many copies did Altitude sell?

An estimated 101k to 164k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Altitude make?

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

How big is Altitude?

Estimated owners: ≈ 101k–164k; from 2k 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 Altitude out and predicted the genre from its 8 similar games. Every figure here, including Altitude's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 50–444

best case 52.2M (War Thunder)

The Side Scroller lane

A niche genre: modest ceilings, most sell around 95 copies, so plan for a small audience.

A typical game

≈ 95 copies

≈ $167 after Steam's cut

from ~3 reviews

Best case

≈ 52.2M copies

War Thunder

from 765k reviews

A breakout hit, far above a typical game.

7 of your 8 games sit in the typical range; 1 is a breakout hit far above it.

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with Free to Play + Simulation, priced around $8.
The breakout hits carry Free to Play + Simulation + Vehicular Combat; a typical game here doesn't.
The games you compared span 2013 to 2022, a lane with a long track record.
A typical game here lands in Bronze (under $10k before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

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Farlight Commanders: Prologue 2021	Est. copies ≈ 570–927 7.7x vs typical SteamSpy 0–20k	Est. revenue Free	Free	23 reviews Mostly Positive	Side ScrollerShooter +6
War Thunder 2013	Est. copies ≈ 39.8M–64.7M 255097x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	765k reviews Mostly Positive	Free to PlaySimulation +6
Space Crisis 2020	Est. copies ≈ 26–43 SteamSpy 0–20k	Est. revenue $57–$156 net $104–$240 gross	$7.99	1 reviews 1 user reviews	Side ScrollerFlight +6
MagicalGirl Mimi 2020	Est. copies ≈ 26–43 SteamSpy 0–20k	Est. revenue $57–$156 net $104–$240 gross	$7.99	1 reviews 1 user reviews	Action RoguelikeFlight +6
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COCKEYED HELICOPTERS 2021	Est. copies ≈ 50–81 SteamSpy 0–20k	Est. revenue $124–$332 net $225–$510 gross	$8.99	2 reviews 2 user reviews	ActionCasual +6
Penetrator 2022	Est. copies ≈ 72–117 SteamSpy 0–20k	Est. revenue $40–$106 net $72–$163 gross	$1.99	3 reviews 3 user reviews	Side ScrollerShoot 'Em Up +6
Pier Pressure 2020	Est. copies ≈ 766–1k 9.7x vs typical SteamSpy 0–20k	Est. revenue $1k–$3k net $2k–$4k gross	$4.99	29 reviews Positive	ActionArcade +6