How much revenue did DOOM + DOOM II make?

An estimated 4.1M to 10.9M net after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did DOOM + DOOM II sell?

Q: How many copies did DOOM + DOOM II sell?

An estimated 1.5M to 2.4M copies, based on its 28k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 1.5M–2.4M; $4.1M–$10.9M net $7.4M–$16.8M gross; from 28k reviews (Overwhelmingly Positive)

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 DOOM + DOOM II out and predicted the genre from its 8 similar games. Every figure here, including DOOM + DOOM II's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 9.1M–14.5M

best case 18.8M (Half-Life 2)

The Action lane

A big, proven genre: most sell around 11.3M copies.

A typical game

≈ 11.3M copies

≈ $68.6M after Steam's cut

from ~209k reviews

Best case

≈ 18.8M copies

Half-Life 2 · ≈ $72.6M after Steam's cut

from 275k reviews

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with FPS + Action, priced around $10.
The games you compared span 1998 to 2020, a lane with a long track record.
A typical game here lands in Diamond ($1M+ before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

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Grand Theft Auto IV: Complete Edition Invalid Date	Est. copies ≈ 4.8M–7.7M SteamSpy 20M–50M	Est. revenue Free	Free	198k reviews Very Positive	Open WorldAction +6
Half-Life 1998	Est. copies ≈ 8.4M–13.7M SteamSpy 10M–20M	Est. revenue $23.2M–$62.3M net $42.1M–$95.8M gross	$9.99	162k reviews Overwhelmingly Positive	FPSClassic +6
Half-Life 2 2004	Est. copies ≈ 14.3M–23.3M SteamSpy 10M–20M	Est. revenue $39.3M–$105.8M net $71.5M–$162.7M gross	$9.99	275k reviews Overwhelmingly Positive	FPSAction +6
Halo: The Master Chief Collection 2019	Est. copies ≈ 7.5M–12.2M SteamSpy 5M–10M	Est. revenue $82.3M–$221.4M net $149.7M–$340.6M gross	$39.99	260k reviews Very Positive	Great SoundtrackFPS +6
Portal 2007	Est. copies ≈ 10.2M–16.6M SteamSpy 10M–20M	Est. revenue $28.0M–$75.4M net $51.0M–$116.0M gross	$9.99	196k reviews Overwhelmingly Positive	PuzzlePuzzle-Platformer +6
Grand Theft Auto IV: The Complete Edition 2020	Est. copies ≈ 5.2M–8.5M SteamSpy 5M–10M	Est. revenue $28.8M–$77.4M net $52.3M–$119.0M gross	$19.99	198k reviews Very Positive	Open WorldAction +6
Counter-Strike 2000	Est. copies ≈ 13.5M–22.0M SteamSpy 10M–20M	Est. revenue $37.2M–$100.1M net $67.7M–$153.9M gross	$9.99	260k reviews Overwhelmingly Positive	ActionFPS +6
DOOM 2016	Est. copies ≈ 8.8M–14.3M SteamSpy 5M–10M	Est. revenue $48.2M–$129.7M net $87.7M–$199.5M gross	$19.99	219k reviews Overwhelmingly Positive	FPSGore +6