How much revenue did Human Fall Flat make?

$51.8M–$139.3M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Human Fall Flat sell?

Q: How many copies did Human Fall Flat sell?

9.4M to 15.3M copies, based on its 226k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 9.4M–15.3M; $51.8M–$139.3M after Steam's cut $94.2M–$214.2M before the cut; from 226k 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 Human Fall Flat out and predicted the genre from its 8 similar games. Every figure here, including Human Fall Flat's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.9M–3.0M

best case 38.6M (Portal 2)

Games like Human Fall Flat

The middle of these games

≈ 1.9M–3.0M copies

≈ $10.0M–$16.9M after Steam's cut

from ~55k reviews

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

All 8 of your similar games are hits.

No genre covers most of your similar games. The closest is Platformer (3 of 8), so the genre you lead with is still undecided.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: Portal 2 at ≈ 29.4M–47.8M copies, ≈ $80.8M–$217.4M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Platformer (3 of 8) and Building (2 of 8).
The winners: Winners here lead with Utilities + Audio Production, priced around $7. The breakout hits carry Utilities + Audio Production + Music; a typical game here doesn't.
The era: The games you compared span 2011 to 2024, and 1 of your 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
Ultimate Chicken Horse 2016	Est. copies ≈ 2.2M–3.6M SteamSpy 1M–2M	Est. revenue $9.2M–$24.6M after Steam's cut $16.7M–$37.9M before the cut	$14.99	53k reviews Overwhelmingly Positive	MultiplayerParty
Besiege 2020	Est. copies ≈ 1.3M–2.1M SteamSpy 1M–2M	Est. revenue $5.4M–$14.6M after Steam's cut $9.9M–$22.5M before the cut	$14.99	53k reviews Overwhelmingly Positive	SimulationSandbox
Soundpad 2017	Est. copies ≈ 3.6M–5.8M 1.9x vs typical SteamSpy 2M–5M	Est. revenue $4.9M–$13.2M after Steam's cut $8.9M–$20.3M before the cut	$4.99	104k reviews Overwhelmingly Positive	UtilitiesAudio Production
Liar's Bar 2024	Est. copies ≈ 1.4M–2.3M SteamSpy 2M–5M	Est. revenue $2.7M–$7.2M after Steam's cut $4.9M–$11.1M before the cut	$6.99	56k reviews Very Positive	MultiplayerCasual
PC Building Simulator 2019	Est. copies ≈ 1.5M–2.5M SteamSpy 1M–2M	Est. revenue $8.4M–$22.5M after Steam's cut $15.2M–$34.5M before the cut	$19.99	53k reviews Very Positive	SimulationEducation
BattleBlock Theater® 2014	Est. copies ≈ 4.1M–6.6M SteamSpy 2M–5M	Est. revenue $16.8M–$45.2M after Steam's cut $30.6M–$69.6M before the cut	$14.99	73k reviews Overwhelmingly Positive	Co-op Platformer
Portal 2 2011	Est. copies ≈ 29.4M–47.8M 8.5x vs typical SteamSpy 5M–10M	Est. revenue $80.8M–$217.4M after Steam's cut $147.0M–$334.4M before the cut	$9.99	466k reviews Overwhelmingly Positive	Platformer Puzzle
HITMAN™ 2 2018	Est. copies ≈ 2.3M–3.7M SteamSpy 5M–10M	Est. revenue Free	Free	75k reviews Very Positive	StealthAssassin