How many copies did SCP: Secret Laboratory sell?

8.0M to 13.0M copies, based on its 232k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did SCP: Secret Laboratory make?

SCP: Secret Laboratory is free to play, so there is no copy-sales revenue to estimate.

How big is SCP: Secret Laboratory?

Estimated owners: ≈ 8.0M–13.0M; from 232k 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 SCP: Secret Laboratory out and predicted the genre from its 8 similar games. Every figure here, including SCP: Secret Laboratory's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 15.8M–33.8M

best case 71.5M (Left 4 Dead 2)

The Co-op genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 15.8M–33.8M copies

≈ $168.7M–$296.7M after Steam's cut

from ~594k reviews

Best case

≈ 54.5M–88.5M copies

Left 4 Dead 2 · ≈ $149.6M–$402.3M after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Co-op (5 of 8) and Horror (5 of 8).
The winners: Winners here lead with Zombies + Co-op, priced around $10.
The era: The games you compared span 2009 to 2023, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Deep Rock Galactic 2020	Est. copies ≈ 10.0M–16.2M SteamSpy 5M–10M	Est. revenue $82.3M–$221.3M after Steam's cut $149.7M–$340.5M before the cut	$29.99	378k reviews Overwhelmingly Positive	DwarfCo-op
DayZ 2018	Est. copies ≈ 14.2M–23.0M SteamSpy 10M–20M	Est. revenue $194.6M–$523.2M after Steam's cut $353.8M–$804.9M before the cut	$49.99	466k reviews Mostly Positive	SurvivalOpen World
Lethal Company 2023	Est. copies ≈ 12.2M–19.9M SteamSpy 10M–20M	Est. revenue $33.6M–$90.4M after Steam's cut $61.1M–$139.0M before the cut	$9.99	510k reviews Overwhelmingly Positive	Online Co-OpHorror
Subnautica 2018	Est. copies ≈ 11.5M–18.6M SteamSpy 5M–10M	Est. revenue $94.5M–$254.0M after Steam's cut $171.8M–$390.8M before the cut	$29.99	377k reviews Overwhelmingly Positive	Open World Survival CraftSurvival
Phasmophobia 2020	Est. copies ≈ 22.0M–35.8M SteamSpy 10M–20M	Est. revenue $121.1M–$325.6M after Steam's cut $220.2M–$500.9M before the cut	$19.99	834k reviews Very Positive	HorrorOnline Co-Op
Dead by Daylight 2016	Est. copies ≈ 36.8M–59.8M 1.5x vs typical SteamSpy 20M–50M	Est. revenue $202.4M–$544.3M after Steam's cut $368.1M–$837.4M before the cut	$19.99	921k reviews Mostly Positive	HorrorMultiplayer
The Forest 2018	Est. copies ≈ 20.6M–33.5M SteamSpy 20M–50M	Est. revenue $113.4M–$304.8M after Steam's cut $206.1M–$468.9M before the cut	$19.99	678k reviews Overwhelmingly Positive	Open World Survival CraftSurvival
Left 4 Dead 2 2009	Est. copies ≈ 54.5M–88.5M 1.8x vs typical SteamSpy 50M–100M	Est. revenue $149.6M–$402.3M after Steam's cut $272.1M–$618.9M before the cut	$9.99	1.0M reviews Overwhelmingly Positive	ZombiesCo-op