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How many copies did Halo: Spartan Assault sell?

Estimated copies sold
≈ 255k–414k
$209k–$563k after Steam's cut $381k–$866k before the cut
from 5k 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 Halo: Spartan Assault out and predicted the genre from its 8 similar games. Every figure here, including Halo: Spartan Assault's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 575k–1.6M
best case 3.7M (Brotato)
The Top-Down Shooter 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
≈ 575k–1.6M copies
≈ $5.0M–$8.6M after Steam's cut
from ~23k reviews
Best case
≈ 2.8M–4.5M copies
Brotato · ≈ $3.8M–$10.3M after Steam's cut
The genre you'd be entering
Your set
Your set clusters on Top-Down Shooter (5 of 8) and Co-op (4 of 8).
The winners
Winners here lead with Rogue-like + Action Roguelike, priced around $5.
The era
The games you compared span 2010 to 2025, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

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Sizing up your own game? See what its genre can realistically do before you build it.