How many copies did Rocky Mayhem sell?

1k to 2k copies, based on its 49 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Rocky Mayhem make?

Rocky Mayhem is free to play, so there is no copy-sales revenue to estimate.

How big is Rocky Mayhem?

Estimated players who have it: ≈ 1k–2k; from 49 reviews (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 Rocky Mayhem and predicted how it would do from its 8 similar games. Every figure here, including Rocky Mayhem's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 102k–130k

best case 3.9M (Brotato)

Games like Rocky Mayhem

A typical game among these

≈ 102k–130k copies

≈ $302k–$637k after Steam's cut

from ~3k 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: Brotato at ≈ 3.0M–4.8M copies, ≈ $4.1M–$10.9M after Steam's cut. It is a breakout hit, far above a typical game.

What their first month looked like

About half the games that made it here had over 2k reviews in their first month; the range was 536 to 42k.

The genre you'd be entering

These games: The similar games share Top-Down Shooter (5 of 8) and Bullet Hell (4 of 8).
The winners: Winners here lead with Action Roguelike + Bullet Hell, priced around $9. The breakout hits carry Arena Shooter + Action Roguelike + Bullet Hell; a typical game here doesn't.
When they shipped: The similar games span 2014 to 2025, 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 70 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
Deep Rock Galactic: Survivor 2025	Est. copies ≈ 1.2M–2.0M 15x vs typical SteamSpy 1M–2M	Est. revenue $4.3M–$11.6M after Steam's cut $7.8M–$17.8M before Steam's cut	$12.99	49k reviews Very Positive	DwarfAction Roguelike
Brotato 2023	Est. copies ≈ 3.0M–4.8M 38x vs typical SteamSpy 2M–5M	Est. revenue $4.1M–$10.9M after Steam's cut $7.4M–$16.8M before Steam's cut	$4.99	119k reviews Overwhelmingly Positive	Rogue-likeSingleplayer
Chicken Invaders Universe 2022	Est. copies ≈ 95k–154k SteamSpy 200k–500k	Est. revenue Free	Free	4k reviews Very Positive	ShooterShoot 'Em Up
Cyberhunt 2017	Est. copies ≈ 100k–163k SteamSpy 500k–1M	Est. revenue $138k–$370k after Steam's cut $251k–$570k before Steam's cut	$4.99	3k reviews Very Positive	IndieAction
Nex Machina 2017	Est. copies ≈ 76k–123k SteamSpy 200k–500k	Est. revenue $416k–$1.1M after Steam's cut $756k–$1.7M before Steam's cut	$19.99	2k reviews Very Positive	Twin Stick Shooter Bullet Hell
Cavalry Girls 2023	Est. copies ≈ 50k–81k SteamSpy 100k–200k	Est. revenue $164k–$441k after Steam's cut $298k–$678k before Steam's cut	$11.99	2k reviews Very Positive	Top-Down ShooterMechs
Halo: Spartan Assault 2014	Est. copies ≈ 277k–449k 1.6x vs typical SteamSpy 200k–500k	Est. revenue $227k–$611k after Steam's cut $413k–$941k before Steam's cut	$2.99	5k reviews Mostly Positive	ActionTop-Down Shooter
Gatekeeper 2025	Est. copies ≈ 84k–136k SteamSpy 100k–200k	Est. revenue $346k–$929k after Steam's cut $628k–$1.4M before Steam's cut	$14.99	3k reviews Very Positive	Early AccessOnline Co-Op