How much revenue did Vellum make?

$201k–$542k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Vellum sell?

Q: How many copies did Vellum sell?

37k to 60k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 37k–60k; $201k–$542k after Steam's cut $366k–$833k before Steam's cut; from 1k 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 Vellum and predicted how it would do from its 8 similar games. Every figure here, including Vellum's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1k–25k

best case 78k (What the Fog)

Games like Vellum

A typical game among these

≈ 1k–25k copies

≈ $9k–$106k after Steam's cut

from ~210 reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

2 of the 8 similar games are hits.

Best case: What the Fog at ≈ 59k–96k copies, ≈ $81k–$219k after Steam's cut.

What their first month looked like

About half the games that made it here had over 83 reviews in their first month; the range was 6 to 1k.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Action Roguelike (7 of 8) and Third-Person Shooter (7 of 8).
The winners: Winners here lead with Rogue-lite + Co-op, priced around $5.
When they shipped: 4 of the 8 similar games shipped in the last two years, so this genre is actively shipping.

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
Fictorum 2017	Est. copies ≈ 40k–65k 5.5x vs typical SteamSpy 100k–200k	Est. revenue $110k–$296k after Steam's cut $200k–$455k before Steam's cut	$9.99	1k reviews Mostly Positive	Action RoguelikeMagic
What the Fog 2024	Est. copies ≈ 59k–96k 11x vs typical SteamSpy 100k–200k	Est. revenue $81k–$219k after Steam's cut $148k–$336k before Steam's cut	$4.99	2k reviews Mostly Positive	Rogue-liteCartoony
Black Gunner Wukong 2024	Est. copies ≈ 12k–20k 2.3x vs typical SteamSpy under 20k	Est. revenue $33k–$89k after Steam's cut $60k–$137k before Steam's cut	$9.99	487 reviews Very Positive	Shoot 'Em UpAction Roguelike
Holomento 2022	Est. copies ≈ 5k–7k SteamSpy under 20k	Est. revenue $25k–$67k after Steam's cut $45k–$103k before Steam's cut	$19.99	182 reviews Mostly Positive	Early AccessAction Roguelike
They Are Hundreds: Prepped 2023	Est. copies ≈ 273–443 SteamSpy 20k–50k	Est. revenue Free	Free	11 reviews Positive	ActionCasual
豆丁人 DOUDINGMAN 2023	Est. copies ≈ 843–1k SteamSpy under 20k	Est. revenue $925–$2k after Steam's cut $2k–$4k before Steam's cut	$3.99	34 reviews Positive	Rogue-liteThird-Person Shooter
Psionic Sentry : Infinite 2025	Est. copies ≈ 6k–10k SteamSpy under 20k	Est. revenue $8k–$22k after Steam's cut $15k–$34k before Steam's cut	$4.99	238 reviews Very Positive	Female ProtagonistAnime
Alone in the Stars: Survivor 2025	Est. copies ≈ 893–1k SteamSpy under 20k	Est. revenue $2k–$5k after Steam's cut $3k–$7k before Steam's cut	$6.99	36 reviews Positive	Action RoguelikeThird-Person Shooter