How much revenue did Really Big Sky make?

$164k–$440k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Really Big Sky sell?

Q: How many copies did Really Big Sky sell?

119k to 194k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 119k–194k; $164k–$440k after Steam's cut $298k–$678k before Steam's cut; from 2k reviews (Mostly 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 Really Big Sky and predicted how it would do from its 8 similar games. Every figure here, including Really Big Sky's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 85k–142k

best case 478k (Nova Drift)

Games like Really Big Sky

A typical game among these

≈ 85k–142k copies

≈ $232k–$639k after Steam's cut

from ~2k 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.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: Nova Drift at ≈ 364k–592k copies, ≈ $1.8M–$4.8M 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 4k reviews in their first month; the range was 2k to 12k.

The genre you'd be entering

These games: The similar games share Bullet Hell (7 of 8) and Shoot 'Em Up (6 of 8).
The winners: Winners here lead with Bullet Hell, priced around $14.
When they shipped: The similar games span 2010 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 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
Beat Hazard 2010	Est. copies ≈ 471k–765k 3.0x vs typical SteamSpy 500k–1M	Est. revenue $1.3M–$3.5M after Steam's cut $2.4M–$5.4M before Steam's cut	$9.99	7k reviews Very Positive	RhythmMusic-Based Procedural Generation
Time Wasters 2023	Est. copies ≈ 65k–106k SteamSpy 200k–500k	Est. revenue $89k–$240k after Steam's cut $162k–$370k before Steam's cut	$4.99	3k reviews Very Positive	Action RoguelikeBullet Hell
Returnal™ 2023	Est. copies ≈ 276k–448k 4.5x vs typical SteamSpy 500k–1M	Est. revenue $4.6M–$12.2M after Steam's cut $8.3M–$18.8M before Steam's cut	$59.99	11k reviews Very Positive	ActionBullet Hell
Nova Drift 2024	Est. copies ≈ 364k–592k 5.9x vs typical SteamSpy 200k–500k	Est. revenue $1.8M–$4.8M after Steam's cut $3.3M–$7.5M before Steam's cut	$17.99	15k reviews Overwhelmingly Positive	Action RoguelikeArena Shooter
Cyberhunt 2017	Est. copies ≈ 100k–163k SteamSpy 500k–1M	Est. revenue $138k–$370k after Steam's cut $251k–$570k before Steam's cut	$4.99	3k reviews Very Positive	IndieAction
Ikaruga 2014	Est. copies ≈ 133k–216k SteamSpy 100k–200k	Est. revenue $365k–$982k after Steam's cut $664k–$1.5M before Steam's cut	$9.99	2k reviews Very Positive	Shoot 'Em UpBullet Hell
Beat Hazard 2 2019	Est. copies ≈ 65k–106k SteamSpy 50k–100k	Est. revenue $340k–$914k after Steam's cut $618k–$1.4M before Steam's cut	$18.99	2k reviews Very Positive	RhythmMusic-Based Procedural Generation
Bit Blaster XL 2016	Est. copies ≈ 256k–416k 2.5x vs typical SteamSpy 500k–1M	Est. revenue $70k–$187k after Steam's cut $127k–$288k before Steam's cut	$0.99	6k reviews Overwhelmingly Positive	Bullet HellShoot 'Em Up