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How many copies did Under the blue horizon sell?

Estimated copies sold
≈ 5k–7k
$7k–$20k after Steam's cut $14k–$31k before the cut
from 183 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 Under the blue horizon out and predicted the genre from its 8 similar games. Every figure here, including Under the blue horizon's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 290k–442k
best case 3.0M (Cookie Clicker)
Games like Under the blue horizon

The middle of these games

≈ 290k–442k copies

≈ $373k–$873k after Steam's cut

from ~9k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

All 8 of your similar games are hits.

Best case: Cookie Clicker at ≈ 2.3M–3.7M copies, ≈ $3.2M–$8.5M after Steam's cut. A breakout hit, far above a typical game.

What it took to get here
About half the games that made it here had over 3k reviews in their first month; the spread ran 930 to 12k.
The genre you'd be entering
Your set
Your set clusters on Idler (7 of 8) and Clicker (6 of 8).
The winners
Winners here lead with Clicker + Idler, priced around $12. The breakout hits carry Pixel Graphics + Horror + God Game; a typical game here doesn't.
The era
The games you compared span 2016 to 2025, and 3 of your 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 52 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

Cookie Clicker
2021
Est. copies
≈ 2.3M–3.7M
10x vs typical
SteamSpy 2M–5M
Est. revenue
$3.2M–$8.5M after Steam's cut $5.7M–$13.1M before the cut
$4.99
93k reviews
Overwhelmingly Positive
ClickerIdler
Mr.Mine
2020
Est. copies
≈ 462k–751k
2.0x vs typical
SteamSpy 500k–1M
Est. revenue
Free
Free
19k reviews
Very Positive
IdlerClicker
(the) Gnorp Apologue
2023
Est. copies
≈ 246k–400k
SteamSpy 200k–500k
Est. revenue
$474k–$1.3M after Steam's cut $861k–$2.0M before the cut
$6.99
10k reviews
Very Positive
ClickerIdler
Tiny Pasture
2025
Est. copies
≈ 213k–346k
SteamSpy 200k–500k
Est. revenue
$350k–$942k after Steam's cut $637k–$1.4M before the cut
$5.99
9k reviews
Very Positive
IdlerFarming Sim
WorldBox - God Simulator
2021
Est. copies
≈ 1.4M–2.3M
6.1x vs typical
SteamSpy 1M–2M
Est. revenue
$7.7M–$20.6M after Steam's cut $14.0M–$31.8M before the cut
$19.99
56k reviews
Overwhelmingly Positive
SandboxGod Game
Ropuka's Idle Island
2025
Est. copies
≈ 106k–172k
SteamSpy 50k–100k
Est. revenue
$116k–$312k after Steam's cut $211k–$479k before the cut
$3.99
4k reviews
Overwhelmingly Positive
IdlerRelaxing
Rusty's Retirement
2024
Est. copies
≈ 367k–597k
1.6x vs typical
SteamSpy 200k–500k
Est. revenue
$706k–$1.9M after Steam's cut $1.3M–$2.9M before the cut
$6.99
15k reviews
Overwhelmingly Positive
IdlerFarming Sim
Plantera
2016
Est. copies
≈ 246k–400k
SteamSpy 100k–200k
Est. revenue
$202k–$544k after Steam's cut $368k–$838k before the cut
$2.99
6k reviews
Very Positive
ClickerIdler

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