How many copies did Summer in Mara Prologue sell?

26k to 42k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Summer in Mara Prologue make?

Summer in Mara Prologue is free to play, so there is no copy-sales revenue to estimate.

How big is Summer in Mara Prologue?

Estimated players who have it: ≈ 26k–42k; from 1k 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 in Mara Prologue and predicted how it would do from its 8 similar games. Every figure here, including Summer in Mara Prologue's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 205k–256k

best case 1.6M (Volcano Princess)

Games like Summer in Mara Prologue

A typical game among these

≈ 205k–256k copies

≈ $903k–$1.6M after Steam's cut

from ~6k 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: Volcano Princess at ≈ 1.2M–2.0M copies, ≈ $3.7M–$9.9M 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 2k reviews in their first month; the range was 69 to 12k.

The genre you'd be entering

These games: The similar games share Female Protagonist (7 of 8) and Anime (5 of 8).
The winners: Winners here lead with Female Protagonist, priced around $25.
When they shipped: The similar games span 2013 to 2025, 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
ENDER LILIES: Quietus of the Knights 2021	Est. copies ≈ 1.1M–1.9M 7.3x vs typical SteamSpy 1M–2M	Est. revenue $7.9M–$21.2M after Steam's cut $14.3M–$32.6M before Steam's cut	$24.99	46k reviews Very Positive	MetroidvaniaFemale Protagonist
Behind the Frame: The Finest Scenery 2021	Est. copies ≈ 192k–312k SteamSpy 200k–500k	Est. revenue $685k–$1.8M after Steam's cut $1.2M–$2.8M before Steam's cut	$12.99	8k reviews Very Positive	AtmosphericSingleplayer
Planet of Lana 2023	Est. copies ≈ 266k–432k 1.7x vs typical SteamSpy 200k–500k	Est. revenue $1.5M–$3.9M after Steam's cut $2.7M–$6.0M before Steam's cut	$19.99	11k reviews Very Positive	ActionFemale Protagonist
Skullgirls 2nd Encore 2013	Est. copies ≈ 2.0M–3.3M 5.1x vs typical SteamSpy 2M–5M	Est. revenue $14.1M–$37.8M after Steam's cut $25.5M–$58.1M before Steam's cut	$24.99	32k reviews Very Positive	Fighting2D Fighter
Rift of the NecroDancer 2025	Est. copies ≈ 156k–254k SteamSpy 50k–100k	Est. revenue $859k–$2.3M after Steam's cut $1.6M–$3.6M before Steam's cut	$19.99	6k reviews Very Positive	RhythmMinigames
LiEat 2016	Est. copies ≈ 195k–317k SteamSpy 200k–500k	Est. revenue $160k–$431k after Steam's cut $292k–$664k before Steam's cut	$2.99	5k reviews Overwhelmingly Positive	Story RichPixel Graphics
Volcano Princess 2023	Est. copies ≈ 1.2M–2.0M 7.8x vs typical SteamSpy 1M–2M	Est. revenue $3.7M–$9.9M after Steam's cut $6.7M–$15.3M before Steam's cut	$10.99	49k reviews Overwhelmingly Positive	Life SimMultiple Endings
Class of '09: The Re-Up 2023	Est. copies ≈ 119k–193k SteamSpy 200k–500k	Est. revenue $489k–$1.3M after Steam's cut $890k–$2.0M before Steam's cut	$14.99	5k reviews Overwhelmingly Positive	Visual NovelFemale Protagonist