How many copies did Rune Break sell?

2k to 3k copies, based on its 65 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Rune Break make?

Rune Break is free to play, so there is no copy-sales revenue to estimate.

How big is Rune Break?

Estimated players who have it: ≈ 2k–3k; from 65 reviews (Mixed)

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 Rune Break and predicted how it would do from its 8 similar games. Every figure here, including Rune Break's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 171–342

best case 8.7M (Vampire Survivors)

Games like Rune Break

A typical game among these

≈ 171–342 copies

≈ $198–$405 after Steam's cut

from ~8 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.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: Vampire Survivors at ≈ 6.6M–10.7M copies, ≈ $9.1M–$24.4M 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 11 reviews in their first month; the range was 2 to 129k.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Action Roguelike (8 of 8) and Bullet Hell (8 of 8).
The winners: Winners here lead with Bullet Hell + Action Roguelike, priced around $11. The breakout hits carry Difficult + Indie + Twin Stick Shooter; a typical game here doesn't.
When they shipped: 4 of the 8 similar games shipped in the last two years, so this genre is actively shipping.

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
Enter the Gungeon 2016	Est. copies ≈ 3.7M–6.1M 12010x vs typical 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
Vampire Survivors 2022	Est. copies ≈ 6.6M–10.7M 35549x vs typical SteamSpy 5M–10M	Est. revenue $9.1M–$24.4M after Steam's cut $16.5M–$37.5M before Steam's cut	$4.99	267k reviews Overwhelmingly Positive	Action RoguelikeBullet Hell
Full Mojo Rampage 2014	Est. copies ≈ 70k–114k 167x vs typical SteamSpy 200k–500k	Est. revenue $251k–$674k after Steam's cut $456k–$1.0M before Steam's cut	$12.99	1k reviews Very Positive	Action RoguelikeTwin Stick Shooter
Touhou ~Red Empress Devil. 2025	Est. copies ≈ 12k–19k 64x vs typical SteamSpy 50k–100k	Est. revenue $29k–$79k after Steam's cut $53k–$121k before Steam's cut	$8.99	478 reviews Mixed	Twin Stick ShooterTop-Down Shooter
KaveXplorer 2020	Est. copies ≈ 149–242 SteamSpy under 20k	Est. revenue $123–$330 after Steam's cut $223–$507 before Steam's cut	$2.99	6 reviews 6 user reviews	Action RoguelikeBullet Hell
Magical Monsters 2024	Est. copies ≈ 74–121 SteamSpy under 20k	Est. revenue $122–$330 after Steam's cut $222–$508 before Steam's cut	$6.00	3 reviews 3 user reviews	Action RoguelikeHack and Slash
Launch And Loot 2024	Est. copies ≈ 372–605 2.0x vs typical SteamSpy under 20k	Est. revenue $510–$1k after Steam's cut $928–$2k before Steam's cut	$4.99	15 reviews Positive	Action RoguelikeRogue-like
Moshcave 2026	Est. copies ≈ 223–363 SteamSpy under 20k	Est. revenue $61–$164 after Steam's cut $110–$252 before Steam's cut	$0.99	9 reviews 9 user reviews	ActionAction Roguelike