How much revenue did Summer of '58 make?

$304k–$816k 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?

123k to 200k copies, based on its 5k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 123k–200k; $304k–$816k after Steam's cut $552k–$1.3M before Steam's cut; from 5k reviews (Very 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 Summer of '58 and predicted how it would do from its 8 similar games. Every figure here, including Summer of '58's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 2.2M–4.7M

best case 4.6M (MiSide)

Games like Summer of '58

A typical game among these

≈ 2.2M–4.7M copies

≈ $24.5M–$38.7M after Steam's cut

from ~85k 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: MiSide at ≈ 3.5M–5.8M copies, ≈ $14.6M–$39.2M after Steam's cut.

What their first month looked like

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

The genre you'd be entering

These games: The similar games share Horror (7 of 8) and Story Rich (5 of 8).
The winners: Winners here lead with Psychological Horror + Story Rich, priced around $15.
When they shipped: The similar games span 2012 to 2024, and 1 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 79 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
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 Steam's 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 $45.1M–$121.3M after Steam's cut $82.0M–$186.6M before Steam's cut	$59.99	110k reviews Very Positive	Story RichPost-apocalyptic
MiSide 2024	Est. copies ≈ 3.5M–5.8M 1.7x vs typical SteamSpy 1M–2M	Est. revenue $14.6M–$39.2M after Steam's cut $26.5M–$60.4M before Steam's cut	$14.99	143k reviews Overwhelmingly Positive	Psychological HorrorCute
Five Nights at Freddy's: Security Breach 2021	Est. copies ≈ 1.7M–2.8M SteamSpy 1M–2M	Est. revenue $19.1M–$51.4M after Steam's cut $34.8M–$79.1M before Steam's cut	$39.99	70k reviews Very Positive	HorrorSingleplayer
Little Nightmares II 2021	Est. copies ≈ 1.5M–2.4M SteamSpy 1M–2M	Est. revenue $12.0M–$32.3M after Steam's cut $21.8M–$49.7M before Steam's cut	$29.99	59k reviews Very Positive	HorrorAdventure
Alan Wake 2012	Est. copies ≈ 3.8M–6.2M SteamSpy 2M–5M	Est. revenue $15.7M–$42.1M after Steam's cut $28.5M–$64.7M before Steam's cut	$14.99	60k reviews Very Positive	ActionHorror
Firewatch 2016	Est. copies ≈ 4.2M–6.8M SteamSpy 2M–5M	Est. revenue $22.9M–$61.5M after Steam's cut $41.6M–$94.6M before Steam's cut	$19.99	100k reviews Very Positive	AdventureAtmospheric
Poppy Playtime 2021	Est. copies ≈ 3.5M–5.7M 1.7x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	143k reviews Very Positive	HorrorFree to Play