How much revenue did The Testament of Sherlock Holmes make?

$1.4M–$3.7M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did The Testament of Sherlock Holmes sell?

Q: How many copies did The Testament of Sherlock Holmes sell?

251k to 407k copies, based on its 4k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 251k–407k; $1.4M–$3.7M after Steam's cut $2.5M–$5.7M before Steam's cut; from 4k 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 The Testament of Sherlock Holmes and predicted how it would do from its 8 similar games. Every figure here, including The Testament of Sherlock Holmes's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 4.9M–6.8M

best case 6.7M (Grand Theft Auto IV: The Complete Edition)

Games like The Testament of Sherlock Holmes

A typical game among these

≈ 4.9M–6.8M copies

≈ $50.9M–$78.1M after Steam's cut

from ~136k 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: Grand Theft Auto IV: The Complete Edition at ≈ 5.1M–8.3M copies, ≈ $27.9M–$75.1M after Steam's cut.

What their first month looked like

About half the games that made it here had over 19k reviews in their first month; the range was 11k to 58k.

The genre you'd be entering

These games: The similar games share Open World (5 of 8) and Third Person (5 of 8).
The winners: Winners here lead with Open World + Automobile Sim, priced around $20.
When they shipped: The similar games span 2010 to 2022, 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 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
Batman: Arkham City - Game of the Year Edition 2012	Est. copies ≈ 5.0M–8.1M SteamSpy 2M–5M	Est. revenue $27.3M–$73.3M after Steam's cut $49.6M–$112.7M before Steam's cut	$19.99	78k reviews Overwhelmingly Positive	ActionOpen World
Persona 5 Royal 2022	Est. copies ≈ 3.5M–5.7M SteamSpy 2M–5M	Est. revenue $57.7M–$155.1M after Steam's cut $104.9M–$238.5M before Steam's cut	$59.99	141k reviews Overwhelmingly Positive	JRPG Story Rich
Batman: Arkham Asylum Game of the Year Edition 2010	Est. copies ≈ 5.5M–9.0M SteamSpy 2M–5M	Est. revenue $30.5M–$82.0M after Steam's cut $55.5M–$126.2M before Steam's cut	$19.99	88k reviews Overwhelmingly Positive	ActionStealth
Disco Elysium - The Final Cut 2019	Est. copies ≈ 3.8M–6.2M SteamSpy 2M–5M	Est. revenue $41.7M–$112.0M after Steam's cut $75.8M–$172.3M before Steam's cut	$39.99	132k reviews Very Positive	RPGStory Rich
Persona 4 Golden 2020	Est. copies ≈ 2.2M–3.5M SteamSpy 1M–2M	Est. revenue $12.0M–$32.1M after Steam's cut $21.7M–$49.5M before Steam's cut	$19.99	88k reviews Overwhelmingly Positive	JRPGGreat Soundtrack
Batman™: Arkham Knight 2015	Est. copies ≈ 7.8M–12.7M SteamSpy 2M–5M	Est. revenue $43.0M–$115.6M after Steam's cut $78.2M–$177.9M before Steam's cut	$19.99	160k reviews Very Positive	ActionOpen World
Grand Theft Auto IV: Complete Edition unreleased	Est. copies ≈ 5.1M–8.2M SteamSpy 20M–50M	Est. revenue Free	Free	204k reviews Very Positive	Open WorldAction
Grand Theft Auto IV: The Complete Edition 2020	Est. copies ≈ 5.1M–8.3M 1.5x vs typical SteamSpy 5M–10M	Est. revenue $27.9M–$75.1M after Steam's cut $50.8M–$115.6M before Steam's cut	$19.99	205k reviews Very Positive	Open WorldAction