How much revenue did DEAD LETTER DEPT. make?

$189k–$509k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did DEAD LETTER DEPT. sell?

Q: How many copies did DEAD LETTER DEPT. sell?

46k to 75k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 46k–75k; $189k–$509k after Steam's cut $344k–$783k before the cut; from 2k reviews (Overwhelmingly 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 DEAD LETTER DEPT. out and predicted the genre from its 8 similar games. Every figure here, including DEAD LETTER DEPT.'s, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.4M–2.2M

best case 4.6M (Poppy Playtime)

Games like DEAD LETTER DEPT.

The middle of these games

≈ 1.4M–2.2M copies

≈ $4.2M–$8.2M after Steam's cut

from ~36k reviews

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

5 of your 8 similar games are hits.

Best case: Poppy Playtime at ≈ 3.5M–5.7M copies. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 85 reviews in their first month; the spread ran 3 to 13k.

Under about 100 in month one, almost nothing recovers.

The genre you'd be entering

Your set: Your set clusters on Mystery (8 of 8) and Puzzle (7 of 8).
The winners: Winners here lead with Horror + Puzzle. The breakout hits carry Free to Play + First-Person + Survival Horror; a typical game here doesn't.
The era: The games you compared span 2014 to 2023, and none of them 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 70 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
Danganronpa: Trigger Happy Havoc 2016	Est. copies ≈ 1.6M–2.6M SteamSpy 1M–2M	Est. revenue $8.8M–$23.5M after Steam's cut $15.9M–$36.2M before the cut	$19.99	38k reviews Overwhelmingly Positive	AnimeVisual Novel
Suffer The Night 2023	Est. copies ≈ 7k–11k too small to compare SteamSpy 20k–50k	Est. revenue $23k–$63k after Steam's cut $43k–$97k before the cut	$12.49	275 reviews Mostly Positive	Horror Survival Horror
Firework 2021	Est. copies ≈ 1.1M–1.8M SteamSpy 500k–1M	Est. revenue $3.0M–$8.1M after Steam's cut $5.5M–$12.5M before the cut	$9.99	44k reviews Overwhelmingly Positive	HorrorIndie
The Room 2014	Est. copies ≈ 1.8M–2.9M SteamSpy 500k–1M	Est. revenue $2.4M–$6.6M after Steam's cut $4.4M–$10.1M before the cut	$4.99	32k reviews Overwhelmingly Positive	PuzzleMystery
Finish Report 2023	Est. copies ≈ 595–967 too small to compare SteamSpy under 20k	Est. revenue $490–$1k after Steam's cut $890–$2k before the cut	$2.99	24 reviews Positive	ExplorationTyping
Ring of Fire: Prologue 2020	Est. copies ≈ 694–1k too small to compare SteamSpy under 20k	Est. revenue Free	Free	28 reviews Positive	Villain ProtagonistInteractive Fiction
Poppy Playtime 2021	Est. copies ≈ 3.5M–5.7M 3.9x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	142k reviews Very Positive	HorrorFree to Play
Unheard - Voices of Crime 2019	Est. copies ≈ 976k–1.6M SteamSpy 1M–2M	Est. revenue $1.9M–$5.0M after Steam's cut $3.4M–$7.8M before the cut	$6.99	34k reviews Overwhelmingly Positive	DetectivePuzzle