How much revenue did Summer of '58 make?

$303k–$814k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Summer of '58 sell?

Q: How many copies did Summer of '58 sell?

122k to 199k copies, based on its 5k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 122k–199k; $303k–$814k after Steam's cut $550k–$1.3M before the cut; from 5k reviews (Very 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 Summer of '58 out and predicted the genre from its 8 similar games. Every figure here, including Summer of '58's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 2.2M–4.7M

best case 4.6M (MiSide)

Games like Summer of '58

The middle of these games

≈ 2.2M–4.7M copies

≈ $24.4M–$38.5M after Steam's cut

from ~85k 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: MiSide at ≈ 3.5M–5.7M copies, ≈ $14.5M–$39.0M after Steam's cut.

What it took to get here

About half the games that made it here had over 16k reviews in their first month; the spread ran 4k to 64k.

The genre you'd be entering

Your set: Your set clusters on Horror (7 of 8) and Story Rich (5 of 8).
The winners: Winners here lead with Psychological Horror + Story Rich, priced around $15.
The era: The games you compared span 2012 to 2024, and 1 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 79 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

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Firework 2021	Est. copies ≈ 1.1M–1.8M SteamSpy 500k–1M	Est. revenue $3.0M–$8.1M after Steam's cut $5.5M–$12.5M before the cut	$9.99	44k reviews Overwhelmingly Positive	HorrorIndie
The Last of Us™ Part I 2023	Est. copies ≈ 2.7M–4.4M SteamSpy 1M–2M	Est. revenue $44.3M–$119.2M after Steam's cut $80.6M–$183.3M before the cut	$59.99	108k reviews Very Positive	Story RichPost-apocalyptic
MiSide 2024	Est. copies ≈ 3.5M–5.7M 1.7x vs typical SteamSpy 1M–2M	Est. revenue $14.5M–$39.0M after Steam's cut $26.3M–$59.9M before the cut	$14.99	142k reviews Overwhelmingly Positive	Psychological HorrorCute
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Little Nightmares II 2021	Est. copies ≈ 1.4M–2.4M SteamSpy 1M–2M	Est. revenue $11.9M–$32.1M after Steam's cut $21.7M–$49.4M before the cut	$29.99	58k reviews Very Positive	HorrorAdventure
Alan Wake 2012	Est. copies ≈ 3.7M–6.1M SteamSpy 2M–5M	Est. revenue $15.4M–$41.4M after Steam's cut $28.0M–$63.7M before the cut	$14.99	59k reviews Very Positive	ActionHorror
Firewatch 2016	Est. copies ≈ 4.1M–6.7M SteamSpy 2M–5M	Est. revenue $22.7M–$61.1M after Steam's cut $41.3M–$93.9M before the cut	$19.99	99k reviews Very Positive	AdventureAtmospheric
Poppy Playtime 2021	Est. copies ≈ 3.5M–5.7M 1.7x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	142k reviews Very Positive	HorrorFree to Play