How many copies did Unfortunate Spacemen sell?

187k to 305k copies, based on its 8k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Unfortunate Spacemen make?

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

How big is Unfortunate Spacemen?

Estimated players who have it: ≈ 187k–305k; from 8k 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 Unfortunate Spacemen and predicted how it would do from its 8 similar games. Every figure here, including Unfortunate Spacemen's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 29k–126k

best case 5.3M (Content Warning)

Games like Unfortunate Spacemen

A typical game among these

≈ 29k–126k copies

≈ $123k–$448k 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.

5 of the 8 similar games are hits.

Best case: Content Warning at ≈ 4.1M–6.6M copies, ≈ $8.9M–$24.0M 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 372 reviews in their first month; the range was 23 to 55k.

The genre you'd be entering

These games: The similar games share Horror (8 of 8) and Co-op (5 of 8).
The winners: Winners here lead with Horror + First-Person, priced around $14. The breakout hits carry Online Co-Op + Funny + First-Person; a typical game here doesn't.
When they shipped: The similar games span 2017 to 2025, and 3 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 43 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
Content Warning 2024	Est. copies ≈ 4.1M–6.6M 87x vs typical SteamSpy 5M–10M	Est. revenue $8.9M–$24.0M after Steam's cut $16.2M–$36.9M before Steam's cut	$7.99	164k reviews Very Positive	Online Co-OpHorror
Fear Therapy 2021	Est. copies ≈ 118k–191k 2.5x vs typical SteamSpy 200k–500k	Est. revenue $161k–$434k after Steam's cut $293k–$667k before Steam's cut	$4.99	5k reviews Mixed	HorrorMultiplayer
Demonologist 2023	Est. copies ≈ 602k–978k 13x vs typical SteamSpy 1M–2M	Est. revenue $3.3M–$8.9M after Steam's cut $6.0M–$13.7M before Steam's cut	$19.99	24k reviews Very Positive	HorrorMultiplayer
At Dead Of Night 2020	Est. copies ≈ 89k–145k 1.9x vs typical SteamSpy 50k–100k	Est. revenue $391k–$1.1M after Steam's cut $711k–$1.6M before Steam's cut	$15.99	4k reviews Very Positive	Survival Horror Horror
White Noise 2 2017	Est. copies ≈ 98k–160k 1.5x vs typical SteamSpy 200k–500k	Est. revenue $270k–$726k after Steam's cut $491k–$1.1M before Steam's cut	$9.99	3k reviews Mostly Positive	HorrorMultiplayer
Hand Simulator: Horror 2020	Est. copies ≈ 22k–36k SteamSpy 50k–100k	Est. revenue $18k–$49k after Steam's cut $33k–$75k before Steam's cut	$2.99	893 reviews Mixed	SimulationMultiplayer
Project Unknown 2025	Est. copies ≈ 23k–37k SteamSpy 20k–50k	Est. revenue $63k–$169k after Steam's cut $115k–$261k before Steam's cut	$9.99	925 reviews Very Positive	Early AccessHorror
Remnant Records 2024	Est. copies ≈ 17k–28k SteamSpy under 20k	Est. revenue $77k–$206k after Steam's cut $140k–$318k before Steam's cut	$15.99	704 reviews Mostly Positive	3DHorror