How many copies did Fish Idle 2: Underwater Mystery sell?

40k to 65k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Fish Idle 2: Underwater Mystery make?

Fish Idle 2: Underwater Mystery is free to play, so there is no copy-sales revenue to estimate.

How big is Fish Idle 2: Underwater Mystery?

Estimated owners: ≈ 40k–65k; from 2k 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 Fish Idle 2: Underwater Mystery out and predicted the genre from its 8 similar games. Every figure here, including Fish Idle 2: Underwater Mystery's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 452k–952k

best case 1.6M (Deep Rock Galactic: Survivor)

Games like Fish Idle 2: Underwater Mystery

The middle of these games

≈ 452k–952k copies

≈ $2.8M–$5.0M after Steam's cut

from ~19k reviews

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

7 of your 8 similar games are hits.

Best case: Deep Rock Galactic: Survivor at ≈ 1.2M–1.9M copies, ≈ $4.3M–$11.5M after Steam's cut.

What it took to get here

About half the games that made it here had over 11k reviews in their first month; the spread ran 1 to 41k.

The genre you'd be entering

Your set: Your set clusters on Arcade (5 of 8) and Action Roguelike (4 of 8).
The winners: Winners here lead with Dwarf + Action Roguelike, priced around $13.
The era: 5 of your 8 similar games shipped in the last two years. You'd be launching into a busy stretch.

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 of about 31, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

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