How much revenue did Zombie Apocalypse - The Last Defense make?

$128–$345 after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Zombie Apocalypse - The Last Defense sell?

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

471 to 766 copies, based on its 19 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 471–766; $128–$345 after Steam's cut $233–$531 before Steam's cut; from 19 reviews (Mostly Positive)

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

Copies, estimated from reviews

typical (middle half) 7.5M–13.0M

best case 13.1M (7 Days to Die)

Games like Zombie Apocalypse - The Last Defense

A typical game among these

≈ 7.5M–13.0M copies

≈ $23.8M–$126.0M after Steam's cut

from ~156k reviews

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

3 of the 8 similar games are hits.

Best case: 7 Days to Die at ≈ 9.9M–16.2M copies, ≈ $123.1M–$331.0M after Steam's cut.

What their first month looked like

About half the games that made it here had over 392 reviews in their first month; the range was 61 to 327k.

The genre you'd be entering

These games: The similar games share Zombies (7 of 8) and Tower Defense (5 of 8).
The winners: Winners here lead with Survival + Zombies, priced around $45.
When they shipped: The similar games span 2009 to 2024, and 2 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
SwarmZ 2019	Est. copies ≈ 12k–19k too small to compare SteamSpy 100k–200k	Est. revenue $16k–$44k after Steam's cut $30k–$67k before Steam's cut	$4.99	411 reviews Mixed	StrategySimulation
VERSUS SQUAD 2016	Est. copies ≈ 24k–39k too small to compare SteamSpy 100k–200k	Est. revenue $53k–$143k after Steam's cut $97k–$220k before Steam's cut	$7.99	583 reviews Mostly Positive	ActionGore
7 Days to Die 2024	Est. copies ≈ 9.9M–16.2M 2.6x vs typical SteamSpy 10M–20M	Est. revenue $123.1M–$331.0M after Steam's cut $223.8M–$509.2M before Steam's cut	$44.99	401k reviews Very Positive	SurvivalZombies
Decision: Red Daze 2022	Est. copies ≈ 22k–36k too small to compare SteamSpy 20k–50k	Est. revenue $123k–$332k after Steam's cut $224k–$510k before Steam's cut	$19.99	905 reviews Mostly Positive	SurvivalAction
Doom Sweeper 2024	Est. copies ≈ 20k–33k too small to compare SteamSpy 50k–100k	Est. revenue $28k–$75k after Steam's cut $51k–$116k before Steam's cut	$4.99	823 reviews Mostly Positive	Action RoguelikeHack and Slash
Plants vs. Zombies GOTY Edition 2009	Est. copies ≈ 9.9M–16.1M SteamSpy 2M–5M	Est. revenue $13.6M–$36.5M after Steam's cut $24.7M–$56.1M before Steam's cut	$4.99	156k reviews Overwhelmingly Positive	Tower DefenseZombies
They Are Billions 2019	Est. copies ≈ 1.5M–2.4M SteamSpy 2M–5M	Est. revenue $12.2M–$32.9M after Steam's cut $22.2M–$50.6M before Steam's cut	$29.99	52k reviews Very Positive	Base-BuildingColony Sim
They Are Coming 2023	Est. copies ≈ 16k–26k too small to compare SteamSpy 20k–50k	Est. revenue $13k–$35k after Steam's cut $24k–$54k before Steam's cut	$2.99	645 reviews Very Positive	Early AccessIndie