How many copies did Carpe Diem sell?

418k to 679k copies, based on its 9k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Carpe Diem make?

Carpe Diem is free to play, so there is no copy-sales revenue to estimate.

How big is Carpe Diem?

Estimated owners: ≈ 418k–679k; from 9k 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 Carpe Diem out and predicted the genre from its 8 similar games. Every figure here, including Carpe Diem's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 105k–2.0M

best case 5.7M (Everlasting Summer)

Games like Carpe Diem

The middle of these games

≈ 105k–2.0M copies

≈ $42k–$12.3M after Steam's cut

from ~15k reviews

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

6 of your 8 similar games are hits.

Best case: Everlasting Summer at ≈ 4.4M–7.1M copies.

The genre you'd be entering

Your set: Your set clusters on Anime (8 of 8) and Visual Novel (8 of 8).
The winners: Winners here lead with Visual Novel + Story Rich.
The era: The games you compared span 2014 to 2021, and none of them 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Christmas Celebration With Sakuya Izayoi 2021	Est. copies ≈ 4k–7k SteamSpy under 20k	Est. revenue $5k–$13k after Steam's cut $9k–$19k before the cut	$3.99	172 reviews Very Positive	AnimeCasual
Everlasting Summer 2014	Est. copies ≈ 4.4M–7.1M 5.3x vs typical SteamSpy 500k–1M	Est. revenue Free	Free	78k reviews Very Positive	Visual Novel Story Rich
Danganronpa: Trigger Happy Havoc 2016	Est. copies ≈ 1.6M–2.6M 2.6x vs typical SteamSpy 1M–2M	Est. revenue $8.8M–$23.5M after Steam's cut $15.9M–$36.2M before the cut	$19.99	38k reviews Overwhelmingly Positive	AnimeVisual Novel
NEKOPARA Vol. 1 2014	Est. copies ≈ 1.5M–2.5M 1.8x vs typical SteamSpy 500k–1M	Est. revenue $4.2M–$11.3M after Steam's cut $7.7M–$17.5M before the cut	$9.99	27k reviews Overwhelmingly Positive	HentaiAnime
Danganronpa 2: Goodbye Despair 2016	Est. copies ≈ 1.4M–2.2M 2.2x vs typical SteamSpy 500k–1M	Est. revenue $7.5M–$20.1M after Steam's cut $13.6M–$30.9M before the cut	$19.99	33k reviews Overwhelmingly Positive	AnimeDetective
Without Within 2015	Est. copies ≈ 99k–161k SteamSpy 100k–200k	Est. revenue Free	Free	2k reviews Very Positive	Free to PlayAnime
Shan Gui (山桂) 2014	Est. copies ≈ 128k–208k SteamSpy 50k–100k	Est. revenue $35k–$94k after Steam's cut $63k–$144k before the cut	$0.99	2k reviews Mostly Positive	Visual NovelFemale Protagonist
Save Me, Sakuya-san! 2021	Est. copies ≈ 22k–37k SteamSpy 20k–50k	Est. revenue $18k–$50k after Steam's cut $34k–$76k before the cut	$2.99	906 reviews Overwhelmingly Positive	AnimeCasual