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How many copies did ONCE IN MY HEAD sell?

Estimated copies sold
≈ 74–121
$61–$164 after Steam's cut $111–$253 before Steam's cut
from 3 reviews (3 user reviews)
Only 3 reviews so far, so that range swings on one or two people. Read it as a hint, not a measurement.

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 ONCE IN MY HEAD and predicted how it would do from its 8 similar games. Every figure here, including ONCE IN MY HEAD's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 877k–1.0M
best case 2.9M (Noita)
Games like ONCE IN MY HEAD

A typical game among these

≈ 877k–1.0M copies

≈ $3.1M–$7.5M after Steam's cut

from ~27k reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

5 of the 8 similar games are hits.

Best case: Noita at ≈ 2.2M–3.6M copies, ≈ $12.1M–$32.6M after Steam's cut.

What their first month looked like
About half the games that made it here had over 9k reviews in their first month; the range was 3 to 24k.
The genre you'd be entering
These games
The similar games share Rogue-like (8 of 8) and Action RPG (6 of 8).
The winners
Winners here lead with Physics + Rogue-like, priced around $20.
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

Soulstone Survivors
2025
Est. copies
≈ 668k–1.1M
SteamSpy 500k–1M
Est. revenue
$2.8M–$7.4M after Steam's cut $5.0M–$11.4M before Steam's cut
$14.99
27k reviews
Very Positive
Action RoguelikeBullet Hell
Children of Morta
2019
Est. copies
≈ 674k–1.1M
SteamSpy 1M–2M
Est. revenue
$4.1M–$11.0M after Steam's cut $7.4M–$16.9M before Steam's cut
$21.99
23k reviews
Very Positive
MultiplayerRogue-like
Halls of Torment
2024
Est. copies
≈ 793k–1.3M
SteamSpy 500k–1M
Est. revenue
$1.5M–$3.9M after Steam's cut $2.6M–$6.0M before Steam's cut
$6.66
32k reviews
Overwhelmingly Positive
Action RoguelikeRogue-lite
Pixel Piracy
2014
Est. copies
≈ 412k–669k
SteamSpy 200k–500k
Est. revenue
$1.7M–$4.6M after Steam's cut $3.1M–$7.0M before Steam's cut
$14.99
7k reviews
Mixed
Action RoguelikeSandbox
Noita
2020
Est. copies
≈ 2.2M–3.6M
3.3x vs typical
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
helicopter 2.0
2022
Est. copies
≈ 719–1k
too small to compare
SteamSpy under 20k
Est. revenue
$196–$527 after Steam's cut $356–$810 before Steam's cut
$0.99
29 reviews
Mixed
AdventureSports
Scarlet Moon
2022
Est. copies
≈ 2k–4k
too small to compare
SteamSpy under 20k
Est. revenue
$3k–$7k after Steam's cut $5k–$11k before Steam's cut
$3.99
98 reviews
Mostly Positive
Early AccessAdventure
Of Blades & Tails
2023
Est. copies
≈ 10k–17k
too small to compare
SteamSpy 200k–500k
Est. revenue
$42k–$113k after Steam's cut $77k–$174k before Steam's cut
$14.99
412 reviews
Mostly Positive
Tactical RPGMedieval

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