How many copies did Altitude sell?

123k to 199k 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: ≈ 123k–199k; 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) 49–439

best case 64.7M (War Thunder)

Games like Altitude

The middle of these games

≈ 49–439 copies

≈ $101–$358 after Steam's cut

from ~3 reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

1 of your 8 similar games is a hit.

Best case: War Thunder at ≈ 49.3M–80.1M copies. A breakout hit, far above a typical game.

What it took to get here

The games that made it here had under 15 reviews in their first month.

Under about 100 in month one, almost nothing recovers.

The genre you'd be entering

Your set: Your set clusters on Side Scroller (6 of 8) and Flight (5 of 8).
The winners: Winners here lead with Simulation + Vehicular Combat. The breakout hits carry Free to Play + Simulation + Vehicular Combat; a typical game here doesn't.
The era: The games you compared span 2013 to 2022, and none of them 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
Farlight Commanders: Prologue 2021	Est. copies ≈ 570–927 7.7x vs typical SteamSpy under 20k	Est. revenue Free	Free	23 reviews Mostly Positive	Side ScrollerShooter
War Thunder 2013	Est. copies ≈ 49.3M–80.1M 260014x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	780k reviews Mostly Positive	Free to PlaySimulation
Space Crisis 2020	Est. copies ≈ 25–40 SteamSpy under 20k	Est. revenue $55–$146 after Steam's cut $100–$224 before the cut	$7.99	1 reviews 1 user reviews	Side ScrollerFlight
MagicalGirl Mimi 2020	Est. copies ≈ 25–40 SteamSpy under 20k	Est. revenue $55–$146 after Steam's cut $100–$224 before the cut	$7.99	1 reviews 1 user reviews	Action RoguelikeFlight
Abiko The Miko 2020	Est. copies ≈ 99–161 SteamSpy under 20k	Est. revenue $218–$585 after Steam's cut $396–$900 before the cut	$7.99	4 reviews 4 user reviews	Action RoguelikeExploration
COCKEYED HELICOPTERS 2021	Est. copies ≈ 50–81 SteamSpy under 20k	Est. revenue $124–$332 after Steam's cut $225–$510 before the cut	$8.99	2 reviews 2 user reviews	ActionCasual
Penetrator 2022	Est. copies ≈ 74–121 SteamSpy under 20k	Est. revenue $41–$110 after Steam's cut $74–$169 before the cut	$1.99	3 reviews 3 user reviews	Side ScrollerShoot 'Em Up
Pier Pressure 2020	Est. copies ≈ 719–1k 9.7x vs typical SteamSpy under 20k	Est. revenue $987–$3k after Steam's cut $2k–$4k before the cut	$4.99	29 reviews Positive	ActionArcade