How many copies did Serena sell?

368k to 599k copies, based on its 7k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Serena make?

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

How big is Serena?

Estimated owners: ≈ 368k–599k; from 7k reviews (Mostly 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 Serena out and predicted the genre from its 8 similar games. Every figure here, including Serena's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 15.2M–23.1M

best case 124.3M (PUBG: BATTLEGROUNDS)

Games like Serena

The middle of these games

≈ 15.2M–23.1M copies

≈ $75.5M–$112.1M after Steam's cut

from ~432k 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.

No genre covers most of your similar games. The closest is Survival (3 of 8), so the genre you lead with is still undecided.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: PUBG: BATTLEGROUNDS at ≈ 94.7M–153.9M copies. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Survival (3 of 8) and Battle Royale (2 of 8).
The winners: Winners here lead with Mature + Utilities, priced around $5. The breakout hits carry Mature + Utilities + Anime; a typical game here doesn't.
The era: The games you compared span 2014 to 2020, 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
Geometry Dash 2014	Est. copies ≈ 35.9M–58.4M SteamSpy 5M–10M	Est. revenue $49.3M–$132.5M after Steam's cut $89.6M–$203.8M before the cut	$4.99	641k reviews Very Positive	DifficultMusic
Bloons TD 6 2018	Est. copies ≈ 12.0M–19.5M SteamSpy 2M–5M	Est. revenue $46.2M–$124.2M after Steam's cut $84.0M–$191.0M before the cut	$13.99	395k reviews Overwhelmingly Positive	Tower DefenseStrategy
Fall Guys 2020	Est. copies ≈ 11.6M–18.9M SteamSpy 20M–50M	Est. revenue Free	Free	468k reviews Very Positive	MultiplayerParty Game
Subnautica 2018	Est. copies ≈ 11.5M–18.8M SteamSpy 5M–10M	Est. revenue $95.2M–$256.0M after Steam's cut $173.1M–$393.9M before the cut	$29.99	380k reviews Overwhelmingly Positive	Open World Survival CraftSurvival
People Playground 2019	Est. copies ≈ 9.2M–14.9M SteamSpy 5M–10M	Est. revenue $25.1M–$67.6M after Steam's cut $45.7M–$104.0M before the cut	$9.99	318k reviews Overwhelmingly Positive	SandboxGore
Wallpaper Engine 2018	Est. copies ≈ 30.9M–50.1M 2.4x vs typical SteamSpy 20M–50M	Est. revenue $42.3M–$113.8M after Steam's cut $77.0M–$175.1M before the cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 94.7M–153.9M 6.4x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.8M reviews Mixed	SurvivalShooter
Unturned 2017	Est. copies ≈ 19.4M–31.6M SteamSpy 50M–100M	Est. revenue Free	Free	565k reviews Very Positive	Free to PlaySurvival