How much revenue did Human-powered spacecraft make?

$8k–$20k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Human-powered spacecraft sell?

Q: How many copies did Human-powered spacecraft sell?

28k to 45k copies, based on its 911 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 28k–45k; $8k–$20k after Steam's cut $14k–$31k before Steam's cut; from 911 reviews (Very 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 Human-powered spacecraft and predicted how it would do from its 8 similar games. Every figure here, including Human-powered spacecraft's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 381k–491k

best case 3.0M (Cookie Clicker)

Games like Human-powered spacecraft

A typical game among these

≈ 381k–491k copies

≈ $616k–$789k after Steam's cut

from ~14k 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: Cookie Clicker at ≈ 2.3M–3.8M copies, ≈ $3.2M–$8.5M 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 114 to 12k.

The genre you'd be entering

These games: The similar games share Clicker (8 of 8) and Idler (8 of 8).
The winners: Winners here lead with Clicker + Idler, priced around $5. The breakout hits carry Indie + Management + Casual; a typical game here doesn't.
When they shipped: The similar games span 2015 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 61 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
NGU IDLE 2019	Est. copies ≈ 374k–608k SteamSpy 500k–1M	Est. revenue Free	Free	13k reviews Overwhelmingly Positive	Free to PlayIdler
Idle Champions of the Forgotten Realms 2020	Est. copies ≈ 374k–607k SteamSpy 1M–2M	Est. revenue Free	Free	15k reviews Mostly Positive	Dungeons & DragonsFree to Play
Clicker Heroes 2015	Est. copies ≈ 3.0M–4.9M 4.6x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	62k reviews Very Positive	ClickerIdler
Nodebuster 2024	Est. copies ≈ 349k–567k SteamSpy 200k–500k	Est. revenue $287k–$771k after Steam's cut $522k–$1.2M before Steam's cut	$2.99	14k reviews Overwhelmingly Positive	CasualClicker
Cookie Clicker 2021	Est. copies ≈ 2.3M–3.8M 6.9x vs typical SteamSpy 2M–5M	Est. revenue $3.2M–$8.5M after Steam's cut $5.8M–$13.1M before Steam's cut	$4.99	93k reviews Overwhelmingly Positive	ClickerIdler
Cell to Singularity - Evolution Never Ends 2021	Est. copies ≈ 698k–1.1M 2.1x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	28k reviews Very Positive	ClickerFree to Play
(the) Gnorp Apologue 2023	Est. copies ≈ 247k–401k SteamSpy 200k–500k	Est. revenue $475k–$1.3M after Steam's cut $863k–$2.0M before Steam's cut	$6.99	10k reviews Very Positive	ClickerIdler
Idle Slayer 2020	Est. copies ≈ 270k–439k SteamSpy 500k–1M	Est. revenue Free	Free	11k reviews Very Positive	CasualIdler