How much revenue did Katana ZERO make?

$9.0M–$24.3M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Katana ZERO sell?

Q: How many copies did Katana ZERO sell?

2.2M to 3.6M copies, based on its 76k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 2.2M–3.6M; $9.0M–$24.3M after Steam's cut $16.4M–$37.4M before Steam's cut; from 76k reviews (Overwhelmingly 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 Katana ZERO and predicted how it would do from its 8 similar games. Every figure here, including Katana ZERO's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 5.7M–10.1M

best case 33.8M (The Binding of Isaac: Rebirth)

Games like Katana ZERO

A typical game among these

≈ 5.7M–10.1M copies

≈ $36.4M–$86.6M after Steam's cut

from ~139k 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.

No genre covers most of these similar games. The closest is Rogue-like (4 of 8), so its genre is hard to place.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: The Binding of Isaac: Rebirth at ≈ 25.8M–41.9M copies, ≈ $106.2M–$285.5M after Steam's cut.

The genre you'd be entering

These games: The similar games share Rogue-like (4 of 8) and Action Roguelike (3 of 8).
The winners: Winners here lead with Action Roguelike + Rogue-like, priced around $15.
When they shipped: The similar games span 2012 to 2020, and none of them 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
The Binding of Isaac: Rebirth 2014	Est. copies ≈ 25.8M–41.9M 3.3x vs typical SteamSpy 5M–10M	Est. revenue $106.2M–$285.5M after Steam's cut $193.0M–$439.2M before Steam's cut	$14.99	460k reviews Overwhelmingly Positive	Action RoguelikeRogue-like
RimWorld 2018	Est. copies ≈ 7.6M–12.3M 1.8x vs typical SteamSpy 5M–10M	Est. revenue $72.7M–$195.4M after Steam's cut $132.2M–$300.7M before Steam's cut	$34.99	249k reviews Overwhelmingly Positive	Colony SimBase-Building
Dead Cells 2018	Est. copies ≈ 5.6M–9.1M SteamSpy 5M–10M	Est. revenue $38.4M–$103.2M after Steam's cut $69.8M–$158.8M before Steam's cut	$24.99	184k reviews Overwhelmingly Positive	AdventureAction Roguelike
Starbound 2016	Est. copies ≈ 5.1M–8.3M SteamSpy 2M–5M	Est. revenue $21.1M–$56.9M after Steam's cut $38.4M–$87.5M before Steam's cut	$14.99	123k reviews Very Positive	Open World Survival CraftSandbox
Celeste 2018	Est. copies ≈ 4.5M–7.4M SteamSpy 2M–5M	Est. revenue $24.9M–$67.0M after Steam's cut $45.3M–$103.1M before Steam's cut	$19.99	149k reviews Overwhelmingly Positive	Precision PlatformerDifficult
Enter the Gungeon 2016	Est. copies ≈ 3.7M–6.1M SteamSpy 2M–5M	Est. revenue $15.4M–$41.5M after Steam's cut $28.1M–$63.9M before Steam's cut	$14.99	90k reviews Overwhelmingly Positive	Bullet HellAction Roguelike
Hotline Miami 2012	Est. copies ≈ 8.1M–13.2M SteamSpy 2M–5M	Est. revenue $22.3M–$60.0M after Steam's cut $40.6M–$92.3M before Steam's cut	$9.99	128k reviews Overwhelmingly Positive	Great SoundtrackViolent
Noita 2020	Est. copies ≈ 2.2M–3.6M SteamSpy 2M–5M	Est. revenue $12.1M–$32.6M after Steam's cut $22.0M–$50.2M before Steam's cut	$19.99	89k reviews Overwhelmingly Positive	PhysicsRogue-like