How much revenue did DEAD LETTER DEPT. make?

$190k–$511k 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; $190k–$511k after Steam's cut $345k–$786k before Steam's cut; from 2k reviews (Overwhelmingly 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 DEAD LETTER DEPT. and predicted how it would do from its 8 similar games. Every figure here, including DEAD LETTER DEPT.'s, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 1.4M–2.2M

best case 4.6M (Poppy Playtime)

Games like DEAD LETTER DEPT.

A typical game among these

≈ 1.4M–2.2M copies

≈ $4.3M–$8.3M after Steam's cut

from ~37k 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: Poppy Playtime at ≈ 3.5M–5.7M copies. 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 85 reviews in their first month; the range was 3 to 13k.

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

The genre you'd be entering

These games: The similar games share 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.
When they shipped: The similar games 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 $8.9M–$24.0M after Steam's cut $16.2M–$36.9M before Steam's cut	$19.99	39k reviews Overwhelmingly Positive	AnimeVisual Novel
Suffer The Night 2023	Est. copies ≈ 7k–11k too small to compare SteamSpy 20k–50k	Est. revenue $24k–$64k after Steam's cut $43k–$98k before Steam's cut	$12.49	279 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 Steam's 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 Steam's 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 Steam's 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	143k reviews Very Positive	HorrorFree to Play
Unheard - Voices of Crime 2019	Est. copies ≈ 981k–1.6M SteamSpy 1M–2M	Est. revenue $1.9M–$5.1M after Steam's cut $3.4M–$7.8M before Steam's cut	$6.99	34k reviews Overwhelmingly Positive	DetectivePuzzle