How many copies did Girls Overboard sell?

5k to 8k copies, based on its 207 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Girls Overboard make?

Girls Overboard is free to play, so there is no copy-sales revenue to estimate.

How big is Girls Overboard?

Estimated owners: ≈ 5k–8k; from 207 reviews (Mixed)

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 Girls Overboard out and predicted the genre from its 8 similar games. Every figure here, including Girls Overboard's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 1.1M–1.8M

best case 3.4M (Mirror)

Games like Girls Overboard

The middle of these games

≈ 1.1M–1.8M copies

≈ $6.1M–$7.8M after Steam's cut

from ~28k 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: Mirror at ≈ 2.6M–4.2M copies, ≈ $1.4M–$3.8M 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 2k reviews in their first month; the spread ran 2k to 7k.

The genre you'd be entering

Your set: Your set clusters on Anime (8 of 8) and Dating Sim (7 of 8).
The winners: Winners here lead with Sexual Content + Nudity, priced around $2. The breakout hits carry Female Protagonist + NSFW + Match 3; a typical game here doesn't.
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
Tricolour Lovestory 2017	Est. copies ≈ 965k–1.6M SteamSpy 1M–2M	Est. revenue $528k–$1.4M after Steam's cut $960k–$2.2M before the cut	$1.99	28k reviews Very Positive	Visual NovelDating Sim
HuniePop 2015	Est. copies ≈ 1.5M–2.5M SteamSpy 1M–2M	Est. revenue $4.2M–$11.4M after Steam's cut $7.7M–$17.6M before the cut	$9.99	32k reviews Overwhelmingly Positive	NudityMature
ATRI -My Dear Moments- 2020	Est. copies ≈ 577k–937k SteamSpy 200k–500k	Est. revenue $3.3M–$9.0M after Steam's cut $6.1M–$13.8M before the cut	$20.99	23k reviews Overwhelmingly Positive	Visual NovelAnime
Crush Crush 2016	Est. copies ≈ 1.2M–1.9M SteamSpy 1M–2M	Est. revenue Free	Free	28k reviews Very Positive	Sexual ContentNudity
NEKOPARA Vol. 1 2014	Est. copies ≈ 1.5M–2.5M 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
Doki Doki Literature Club Plus! 2021	Est. copies ≈ 798k–1.3M SteamSpy 500k–1M	Est. revenue $3.3M–$8.8M after Steam's cut $6.0M–$13.6M before the cut	$14.99	32k reviews Overwhelmingly Positive	Psychological Horror Visual Novel
Senren＊Banka 2020	Est. copies ≈ 915k–1.5M SteamSpy 500k–1M	Est. revenue $8.8M–$23.7M after Steam's cut $16.0M–$36.4M before the cut	$34.99	37k reviews Overwhelmingly Positive	Visual NovelNSFW
Mirror 2018	Est. copies ≈ 2.6M–4.2M 3.0x vs typical SteamSpy 2M–5M	Est. revenue $1.4M–$3.8M after Steam's cut $2.5M–$5.8M before the cut	$1.99	84k reviews Overwhelmingly Positive	Sexual ContentNudity