How much revenue did Wattam make?

$82k–$220k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Wattam sell?

Q: How many copies did Wattam sell?

15k to 24k copies, based on its 600 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 15k–24k; $82k–$220k after Steam's cut $149k–$338k before Steam's cut; from 600 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 Wattam and predicted how it would do from its 8 similar games. Every figure here, including Wattam's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 661k–6.9M

best case 105.1M (Garry's Mod)

Games like Wattam

A typical game among these

≈ 661k–6.9M copies

≈ $7.7M–$71.4M after Steam's cut

from ~56k reviews

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

All 8 of the similar games are hits.

Best case: Garry's Mod at ≈ 80.0M–130.1M copies, ≈ $219.9M–$591.3M after Steam's cut.

The genre you'd be entering

These games: The similar games share Sandbox (7 of 8) and Open World (5 of 8).
The winners: Winners here lead with Sandbox + Moddable, priced around $10.
When they shipped: The similar games span 2006 to 2024, and 2 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 79 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
Garry's Mod 2006	Est. copies ≈ 80.0M–130.1M 23x vs typical SteamSpy 20M–50M	Est. revenue $219.9M–$591.3M after Steam's cut $399.8M–$909.6M before Steam's cut	$9.99	1.3M reviews Overwhelmingly Positive	SandboxModdable
Goat Simulator 3 2024	Est. copies ≈ 398k–646k SteamSpy 200k–500k	Est. revenue $3.3M–$8.8M after Steam's cut $6.0M–$13.6M before Steam's cut	$29.99	16k reviews Overwhelmingly Positive	ExplorationPhysics
Goat Simulator 2014	Est. copies ≈ 3.9M–6.4M SteamSpy 2M–5M	Est. revenue $10.8M–$29.1M after Steam's cut $19.7M–$44.7M before Steam's cut	$9.99	70k reviews Very Positive	SimulationFunny
Kerbal Space Program 2015	Est. copies ≈ 7.2M–11.7M 2.6x vs typical SteamSpy 2M–5M	Est. revenue $79.0M–$212.3M after Steam's cut $143.6M–$326.6M before Steam's cut	$39.99	147k reviews Overwhelmingly Positive	SpaceSimulation
SPORE™ 2008	Est. copies ≈ 4.6M–7.5M SteamSpy 2M–5M	Est. revenue $25.3M–$68.0M after Steam's cut $46.0M–$104.7M before Steam's cut	$19.99	73k reviews Very Positive	God GameOpen World
Little Kitty, Big City 2024	Est. copies ≈ 345k–560k SteamSpy 200k–500k	Est. revenue $2.4M–$6.4M after Steam's cut $4.3M–$9.8M before Steam's cut	$24.99	14k reviews Overwhelmingly Positive	CatsCute
LEGO® Worlds 2017	Est. copies ≈ 539k–875k SteamSpy 500k–1M	Est. revenue $4.4M–$11.9M after Steam's cut $8.1M–$18.4M before Steam's cut	$29.99	16k reviews Mostly Positive	LEGOOpen World
Bully: Scholarship Edition 2008	Est. copies ≈ 2.7M–4.3M SteamSpy 2M–5M	Est. revenue $11.0M–$29.6M after Steam's cut $20.0M–$45.6M before Steam's cut	$14.99	42k reviews Very Positive	Open WorldAction