How many copies did Battle Islands sell?

180k to 293k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Battle Islands make?

Battle Islands is free to play, so there is no copy-sales revenue to estimate.

How big is Battle Islands?

Estimated owners: ≈ 180k–293k; from 3k reviews (Mostly 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 Battle Islands out and predicted the genre from its 8 similar games. Every figure here, including Battle Islands's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 18k–57k

best case 102k (Toy Soldiers)

The Tower Defense genre

2 of your 8 similar games are hits. A niche genre: plan for a small audience.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 18k–57k copies

≈ $53k–$360k after Steam's cut

from ~561 reviews

Best case

≈ 78k–126k copies

Toy Soldiers · ≈ $213k–$573k after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Tower Defense (7 of 8) and World War II (5 of 8).
The winners: Winners here lead with Tower Defense + Simulation, priced around $10.
The era: The games you compared span 2012 to 2023, 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
iBomber Defense Pacific 2012	Est. copies ≈ 31k–50k SteamSpy 100k–200k	Est. revenue $51k–$136k after Steam's cut $92k–$210k before the cut	$5.99	592 reviews Very Positive	Tower DefenseStrategy
Warfront Defenders 2017	Est. copies ≈ 2k–3k too small to compare SteamSpy 200k–500k	Est. revenue $3k–$7k after Steam's cut $5k–$10k before the cut	$4.99	53 reviews Mixed	RTSTower Defense
War of Beach 2015	Est. copies ≈ 25k–40k SteamSpy under 20k	Est. revenue Free	Free	529 reviews Mixed	StrategyFree to Play
Skirmish Line 2019	Est. copies ≈ 10k–17k SteamSpy under 20k	Est. revenue $29k–$77k after Steam's cut $52k–$119k before the cut	$9.99	363 reviews Very Positive	World War IIStrategy
Beach Invasion 1945 - Pacific 2023	Est. copies ≈ 7k–11k SteamSpy under 20k	Est. revenue $18k–$48k after Steam's cut $32k–$74k before the cut	$9.99	271 reviews Very Positive	ShooterWorld War II
Toy Soldiers: Complete 2016	Est. copies ≈ 47k–77k 2.1x vs typical SteamSpy 200k–500k	Est. revenue $195k–$525k after Steam's cut $355k–$808k before the cut	$14.99	1k reviews Mostly Positive	Tower DefenseAction
Toy Soldiers 2012	Est. copies ≈ 78k–126k 2.7x vs typical SteamSpy 200k–500k	Est. revenue $213k–$573k after Steam's cut $388k–$882k before the cut	$9.99	1k reviews Very Positive	StrategyAction
For The Fatherland 2023	Est. copies ≈ 840–1k too small to compare SteamSpy under 20k	Est. revenue $1k–$3k after Steam's cut $2k–$5k before the cut	$4.99	35 reviews Mostly Positive	Tower DefenseStrategy