How much revenue did GTFO make?

$18.2M–$48.9M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did GTFO sell?

Q: How many copies did GTFO sell?

1.7M to 2.7M copies, based on its 67k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.7M–2.7M; $18.2M–$48.9M after Steam's cut $33.0M–$75.2M before the cut; from 67k 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 GTFO out and predicted the genre from its 8 similar games. Every figure here, including GTFO's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 10.5M–12.2M

best case 87.5M (Left 4 Dead 2)

Games like GTFO

The middle of these games

≈ 10.5M–12.2M copies

≈ $145.6M–$202.9M after Steam's cut

from ~277k 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.

Best case: Left 4 Dead 2 at ≈ 66.7M–108.4M copies, ≈ $183.2M–$492.6M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on FPS (6 of 8) and Shooter (6 of 8).
The winners: Winners here lead with Zombies + Co-op, priced around $10. The breakout hits carry Zombies + Action + Survival; a typical game here doesn't.
The era: The games you compared span 2009 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 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
Hunt: Showdown 1896 2019	Est. copies ≈ 8.0M–13.0M SteamSpy 10M–20M	Est. revenue $87.8M–$236.2M after Steam's cut $159.7M–$363.4M before the cut	$39.99	277k reviews Mostly Positive	Open WorldExtraction Shooter
Ready or Not 2023	Est. copies ≈ 8.5M–13.9M SteamSpy 5M–10M	Est. revenue $117.4M–$315.6M after Steam's cut $213.4M–$485.5M before the cut	$49.99	344k reviews Mostly Positive	TacticalRealistic
Left 4 Dead 2 2009	Est. copies ≈ 66.7M–108.4M 3.8x vs typical SteamSpy 50M–100M	Est. revenue $183.2M–$492.6M after Steam's cut $333.1M–$757.9M before the cut	$9.99	1.1M reviews Overwhelmingly Positive	ZombiesCo-op
DOOM 2016	Est. copies ≈ 9.2M–15.0M SteamSpy 5M–10M	Est. revenue $50.6M–$136.0M after Steam's cut $92.0M–$209.3M before the cut	$19.99	221k reviews Overwhelmingly Positive	FPSGore
Deep Rock Galactic 2020	Est. copies ≈ 9.4M–15.3M SteamSpy 5M–10M	Est. revenue $77.6M–$208.6M after Steam's cut $141.1M–$321.0M before the cut	$29.99	379k reviews Overwhelmingly Positive	DwarfCo-op
SCP: Secret Laboratory 2017	Est. copies ≈ 8.0M–13.1M SteamSpy 5M–10M	Est. revenue Free	Free	234k reviews Very Positive	Free to PlayMultiplayer
DayZ 2018	Est. copies ≈ 14.2M–23.1M 1.7x vs typical SteamSpy 10M–20M	Est. revenue $195.8M–$526.4M after Steam's cut $356.0M–$809.9M before the cut	$49.99	469k reviews Mostly Positive	SurvivalOpen World
Halo: The Master Chief Collection 2019	Est. copies ≈ 7.5M–12.3M SteamSpy 5M–10M	Est. revenue $83.0M–$223.2M after Steam's cut $150.9M–$343.3M before the cut	$39.99	262k reviews Very Positive	Great SoundtrackFPS