How much revenue did Killing Floor 2 make?

$42.6M–$114.5M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Killing Floor 2 sell?

Q: How many copies did Killing Floor 2 sell?

5.2M to 8.4M copies, based on its 129k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 5.2M–8.4M; $42.6M–$114.5M after Steam's cut $77.4M–$176.2M before the cut; from 129k 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 Killing Floor 2 out and predicted the genre from its 8 similar games. Every figure here, including Killing Floor 2's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 8.8M–21.4M

best case 71.5M (Left 4 Dead 2)

The Open World 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

≈ 8.8M–21.4M copies

≈ $95.4M–$282.5M after Steam's cut

from ~340k 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 Open World (6 of 8) and Survival (5 of 8).
The winners: Winners here lead with Zombies + Co-op, priced around $10.
The era: The games you compared span 2009 to 2024, 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
Left 4 Dead 2 2009	Est. copies ≈ 54.5M–88.5M 3.1x 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
7 Days to Die 2024	Est. copies ≈ 9.7M–15.7M SteamSpy 10M–20M	Est. revenue $119.8M–$322.1M after Steam's cut $217.8M–$495.5M before the cut	$44.99	403k reviews Very Positive	SurvivalZombies
Z1 Battle Royale 2018	Est. copies ≈ 6.2M–10.0M SteamSpy 10M–20M	Est. revenue Free	Free	203k reviews Mixed	SurvivalMassively Multiplayer
theHunter: Call of the Wild™ 2017	Est. copies ≈ 6.9M–11.2M SteamSpy 5M–10M	Est. revenue $37.9M–$102.0M after Steam's cut $69.0M–$156.9M before the cut	$19.99	201k reviews Very Positive	HuntingOpen World
Hunt: Showdown 1896 2019	Est. copies ≈ 7.9M–12.9M SteamSpy 10M–20M	Est. revenue $65.5M–$176.1M after Steam's cut $119.1M–$270.9M before the cut	$29.99	276k reviews Mostly Positive	Open WorldExtraction Shooter
Dying Light 2015	Est. copies ≈ 22.8M–37.1M SteamSpy 10M–20M	Est. revenue $156.7M–$421.4M after Steam's cut $285.0M–$648.3M before the cut	$24.99	492k reviews Overwhelmingly Positive	ZombiesSurvival Horror
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
Warhammer 40,000: Darktide 2022	Est. copies ≈ 3.3M–5.3M SteamSpy 2M–5M	Est. revenue $35.9M–$96.6M after Steam's cut $65.4M–$148.7M before the cut	$39.99	136k reviews Mostly Positive	HorrorTeam-Based