How much revenue did Hydrofoil Generation make?

$16k–$44k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Hydrofoil Generation sell?

Q: How many copies did Hydrofoil Generation sell?

3k to 5k copies, based on its 119 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 3k–5k; $16k–$44k after Steam's cut $29k–$67k before Steam's cut; from 119 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 Hydrofoil Generation and predicted how it would do from its 8 similar games. Every figure here, including Hydrofoil Generation's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 5k–22k

best case 561k (Naval Action)

Games like Hydrofoil Generation

A typical game among these

≈ 5k–22k copies

≈ $28k–$68k after Steam's cut

from ~188 reviews

Only the top fifth of 2019's Steam releases earned $34k or more before Steam's cut, so plan for that or less.

2 of the 8 similar games are hits.

Best case: Naval Action at ≈ 428k–695k copies, ≈ $2.4M–$6.3M 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 34 reviews in their first month; the range was 3 to 63.

Games with under about 100 reviews in month one almost never recover.

The genre you'd be entering

These games: The similar games share Sailing (7 of 8) and Simulation (6 of 8).
The winners: Winners here lead with Sailing + Naval Combat, priced around $20. The breakout hits carry Naval Combat + Pirates + MMORPG; a typical game here doesn't.
When they shipped: The similar games span 2018 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 38 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
eSail Sailing Simulator 2019	Est. copies ≈ 24k–40k 4.5x vs typical SteamSpy 20k–50k	Est. revenue $256k–$688k after Steam's cut $465k–$1.1M before Steam's cut	$37.99	850 reviews Very Positive	SimulationSports
Virtual Sailor NG 2022	Est. copies ≈ 3k–5k SteamSpy under 20k	Est. revenue $37k–$100k after Steam's cut $67k–$153k before Steam's cut	$39.99	136 reviews Very Positive	CasualSimulation
Naval Action 2019	Est. copies ≈ 428k–695k 79x vs typical SteamSpy 200k–500k	Est. revenue $2.4M–$6.3M after Steam's cut $4.3M–$9.7M before Steam's cut	$19.99	15k reviews Mixed	SailingNaval Combat
Pancake Sailor 2020	Est. copies ≈ 5k–8k SteamSpy under 20k	Est. revenue Free	Free	188 reviews Very Positive	SimulationFree to Play
Sailaway - The Sailing Simulator 2018	Est. copies ≈ 31k–51k 5.4x vs typical SteamSpy 20k–50k	Est. revenue Free	Free	1k reviews Mixed	SimulationRacing
VR Sailing 2024	Est. copies ≈ 8k–14k 1.8x vs typical SteamSpy under 20k	Est. revenue $18k–$50k after Steam's cut $34k–$76k before Steam's cut	$7.99	339 reviews Very Positive	RacingSimulation
VR Regatta - The Sailing Game 2018	Est. copies ≈ 5k–9k SteamSpy under 20k	Est. revenue $15k–$40k after Steam's cut $27k–$62k before Steam's cut	$9.99	180 reviews Very Positive	SailingVR
Summer Trip Cruise 2023	Est. copies ≈ 3k–5k SteamSpy under 20k	Est. revenue $8k–$21k after Steam's cut $14k–$32k before Steam's cut	$9.99	113 reviews Very Positive	RacingDriving