How much revenue did Day of Defeat: Source make?

$4.1M–$11.0M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Day of Defeat: Source sell?

Q: How many copies did Day of Defeat: Source sell?

1.5M to 2.4M copies, based on its 24k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.5M–2.4M; $4.1M–$11.0M after Steam's cut $7.5M–$17.0M before Steam's cut; from 24k 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 Day of Defeat: Source and predicted how it would do from its 8 similar games. Every figure here, including Day of Defeat: Source's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 7.3M–8.6M

best case 65.2M (War Thunder)

Games like Day of Defeat: Source

A typical game among these

≈ 7.3M–8.6M copies

≈ $88.8M–$128.6M after Steam's cut

from ~153k 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: War Thunder at ≈ 49.7M–80.7M copies. 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 8k reviews in their first month; the range was 1k to 47k.

The genre you'd be entering

These games: The similar games share War (6 of 8) and FPS (5 of 8).
The winners: Winners here lead with Simulation + Vehicular Combat. The breakout hits carry Simulation + Vehicular Combat + Combat; a typical game here doesn't.
When they shipped: The similar games span 2013 to 2021, 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
War Thunder 2013	Est. copies ≈ 49.7M–80.7M 5.1x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	786k reviews Mostly Positive	Free to PlaySimulation
Battlefield™ 1 2020	Est. copies ≈ 5.7M–9.2M SteamSpy 5M–10M	Est. revenue $62.3M–$167.4M after Steam's cut $113.2M–$257.5M before Steam's cut	$39.99	228k reviews Very Positive	FPSMultiplayer
World of Warships 2017	Est. copies ≈ 5.4M–8.8M SteamSpy 20M–50M	Est. revenue Free	Free	157k reviews Mostly Positive	Free to PlayNaval Combat
Company of Heroes 2 2013	Est. copies ≈ 7.2M–11.6M SteamSpy 5M–10M	Est. revenue $39.4M–$105.8M after Steam's cut $71.6M–$162.8M before Steam's cut	$19.99	113k reviews Mostly Positive	StrategyWorld War II
Heroes & Generals 2016	Est. copies ≈ 5.9M–9.6M SteamSpy 10M–20M	Est. revenue Free	Free	142k reviews Mixed	Free to PlayWorld War II
World of Tanks Blitz 2016	Est. copies ≈ 6.4M–10.4M SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play
Battlefield™ V 2020	Est. copies ≈ 6.7M–10.9M 1.8x vs typical SteamSpy 10M–20M	Est. revenue $92.2M–$247.8M after Steam's cut $167.6M–$381.2M before Steam's cut	$49.99	270k reviews Mostly Positive	FPSMultiplayer
Hell Let Loose 2021	Est. copies ≈ 3.7M–6.0M SteamSpy 2M–5M	Est. revenue $51.1M–$137.3M after Steam's cut $92.9M–$211.3M before Steam's cut	$49.99	150k reviews Very Positive	ShooterRealistic