How much revenue did Killing Floor 2 make?

$44.4M–$119.3M 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?

5.4M to 8.7M copies, based on its 129k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 5.4M–8.7M; $44.4M–$119.3M after Steam's cut $80.6M–$183.5M 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) 8.9M–21.9M

best case 87.5M (Left 4 Dead 2)

Games like Killing Floor 2

The middle of these games

≈ 8.9M–21.9M copies

≈ $178.1M–$329.9M after Steam's cut

from ~339k 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.

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, and 1 of your 8 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
Left 4 Dead 2 2009	Est. copies ≈ 66.7M–108.4M 3.1x 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
7 Days to Die 2024	Est. copies ≈ 9.9M–16.1M SteamSpy 10M–20M	Est. revenue $122.7M–$330.0M after Steam's cut $223.1M–$507.7M before the cut	$44.99	400k reviews Very Positive	SurvivalZombies
Z1 Battle Royale 2018	Est. copies ≈ 6.2M–10.0M SteamSpy 10M–20M	Est. revenue Free	Free	202k reviews Mixed	SurvivalMassively Multiplayer
theHunter: Call of the Wild™ 2017	Est. copies ≈ 7.0M–11.3M SteamSpy 5M–10M	Est. revenue Free	Free	202k reviews Very Positive	HuntingOpen World
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
Dying Light 2015	Est. copies ≈ 24.1M–39.2M SteamSpy 10M–20M	Est. revenue $165.8M–$445.8M after Steam's cut $301.5M–$685.8M before the cut	$24.99	494k reviews Overwhelmingly Positive	ZombiesSurvival Horror
DayZ 2018	Est. copies ≈ 14.2M–23.1M 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
Warhammer 40,000: Darktide 2022	Est. copies ≈ 3.4M–5.6M SteamSpy 2M–5M	Est. revenue $37.6M–$101.1M after Steam's cut $68.4M–$155.6M before the cut	$39.99	138k reviews Mostly Positive	HorrorTeam-Based