How many copies did My Free Zoo sell?

25k to 41k copies, based on its 734 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did My Free Zoo make?

My Free Zoo is free to play, so there is no copy-sales revenue to estimate.

How big is My Free Zoo?

Estimated owners: ≈ 25k–41k; from 734 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 My Free Zoo out and predicted the genre from its 8 similar games. Every figure here, including My Free Zoo's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 12.2M–20.0M

best case 124.1M (PUBG: BATTLEGROUNDS)

Games like My Free Zoo

The middle of these games

≈ 12.2M–20.0M copies

≈ $95.5M–$257.5M after Steam's cut

from ~305k 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 Sandbox (4 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 ≈ 94.5M–153.6M copies. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on Sandbox (4 of 8) and Physics (3 of 8).
The winners: Winners here lead with Survival + Shooter, priced around $5. The breakout hits carry Survival + Shooter + Battle Royale; a typical game here doesn't.
The era: None of the games you compared shipped in the last two years; the newest is from 2019. That says more about your picks than about the market, so add newer similar games to read the timing.

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 36 for the most recent game here to about 61 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
VRChat 2017	Est. copies ≈ 9.2M–15.0M SteamSpy 20M–50M	Est. revenue Free	Free	268k reviews Mostly Positive	VRFree to Play
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 94.5M–153.6M 9.0x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter
Hearts of Iron IV 2016	Est. copies ≈ 15.6M–25.4M SteamSpy 5M–10M	Est. revenue $214.5M–$576.7M after Steam's cut $390.0M–$887.2M before the cut	$49.99	375k reviews Very Positive	StrategyWorld War II
BeamNG.drive 2015	Est. copies ≈ 20.3M–33.0M SteamSpy 5M–10M	Est. revenue $139.6M–$375.3M after Steam's cut $253.8M–$577.4M before the cut	$24.99	416k reviews Overwhelmingly Positive	SimulationDriving
Human Fall Flat 2016	Est. copies ≈ 9.4M–15.3M SteamSpy 10M–20M	Est. revenue $51.8M–$139.3M after Steam's cut $94.2M–$214.2M before the cut	$19.99	226k reviews Very Positive	Co-opFunny
Wallpaper Engine 2018	Est. copies ≈ 30.8M–50.0M 3.3x vs typical SteamSpy 20M–50M	Est. revenue $42.2M–$113.5M after Steam's cut $76.8M–$174.6M before the cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
Cities: Skylines 2015	Est. copies ≈ 14.2M–23.1M SteamSpy 10M–20M	Est. revenue $117.4M–$315.8M after Steam's cut $213.5M–$485.8M before the cut	$29.99	292k reviews Very Positive	City Builder Simulation
People Playground 2019	Est. copies ≈ 9.1M–14.9M SteamSpy 5M–10M	Est. revenue $25.1M–$67.5M after Steam's cut $45.7M–$103.9M before the cut	$9.99	317k reviews Overwhelmingly Positive	SandboxGore