How much revenue did Zombie Defense: The Last Frontier make?

$284–$762 after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Zombie Defense: The Last Frontier sell?

Q: How many copies did Zombie Defense: The Last Frontier sell?

1k to 2k copies, based on its 42 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1k–2k; $284–$762 after Steam's cut $516–$1k before Steam's cut; from 42 reviews (Mixed)

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 Zombie Defense: The Last Frontier and predicted how it would do from its 8 similar games. Every figure here, including Zombie Defense: The Last Frontier's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 611k–1.4M

best case 3.7M (Call of Juarez: Gunslinger)

Games like Zombie Defense: The Last Frontier

A typical game among these

≈ 611k–1.4M copies

≈ $4.6M–$16.3M after Steam's cut

from ~22k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

All 8 of the similar games are hits.

Best case: Call of Juarez: Gunslinger at ≈ 2.8M–4.6M copies, ≈ $11.6M–$31.1M after Steam's cut.

What their first month looked like

About half the games that made it here had over 4k reviews in their first month; the range was 926 to 29k.

The genre you'd be entering

These games: The similar games share FPS (8 of 8) and Shooter (7 of 8).
The winners: Winners here lead with Western + FPS, priced around $15.
When they shipped: The similar games span 2007 to 2024, and 1 of the 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
Warhammer 40,000: Boltgun 2023	Est. copies ≈ 454k–738k SteamSpy 200k–500k	Est. revenue $2.7M–$7.4M after Steam's cut $5.0M–$11.4M before Steam's cut	$21.99	18k reviews Very Positive	Boomer ShooterFPS
Call of Duty® 4: Modern Warfare® (2007) 2007	Est. copies ≈ 1.7M–2.8M SteamSpy 2M–5M	Est. revenue $9.5M–$25.5M after Steam's cut $17.2M–$39.2M before Steam's cut	$19.99	27k reviews Very Positive	FPSAction
Post Void 2020	Est. copies ≈ 308k–500k SteamSpy 1M–2M	Est. revenue $253k–$680k after Steam's cut $460k–$1.0M before Steam's cut	$2.99	12k reviews Overwhelmingly Positive	FPSPsychedelic
Call of Juarez: Gunslinger 2013	Est. copies ≈ 2.8M–4.6M 2.0x vs typical SteamSpy 2M–5M	Est. revenue $11.6M–$31.1M after Steam's cut $21.0M–$47.8M before Steam's cut	$14.99	44k reviews Very Positive	WesternFPS
Krunker 2021	Est. copies ≈ 650k–1.1M SteamSpy 2M–5M	Est. revenue Free	Free	26k reviews Mostly Positive	ShooterFPS
Quake Live 2014	Est. copies ≈ 890k–1.4M SteamSpy 2M–5M	Est. revenue $2.4M–$6.6M after Steam's cut $4.4M–$10.1M before Steam's cut	$9.99	16k reviews Very Positive	FPSArena Shooter
Starship Troopers: Extermination 2024	Est. copies ≈ 829k–1.3M 1.5x vs typical SteamSpy 1M–2M	Est. revenue $6.8M–$18.4M after Steam's cut $12.4M–$28.3M before Steam's cut	$29.99	33k reviews Mostly Positive	Online Co-OpAction
BATTALION: Legacy 2019	Est. copies ≈ 469k–763k SteamSpy 1M–2M	Est. revenue Free	Free	16k reviews Mixed	FPSArena Shooter