How much revenue did The Citadel make?

$316k–$849k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did The Citadel sell?

Q: How many copies did The Citadel sell?

77k to 124k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 77k–124k; $316k–$849k after Steam's cut $574k–$1.3M before the cut; from 3k reviews (Very 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 The Citadel out and predicted the genre from its 8 similar games. Every figure here, including The Citadel's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 840k–2.1M

best case 13.6M (Half-Life)

Games like The Citadel

The middle of these games

≈ 840k–2.1M copies

≈ $4.0M–$6.5M after Steam's cut

from ~21k 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.

Best case: Half-Life at ≈ 10.3M–16.8M copies, ≈ $28.4M–$76.4M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on FPS (7 of 8) and Shooter (6 of 8).
The winners: Winners here lead with FPS + Classic, priced around $10. The breakout hits carry Multiplayer + 1990's + Sci-fi; a typical game here doesn't.
The era: The games you compared span 1998 to 2023, 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
DOOM + DOOM II 2007	Est. copies ≈ 1.8M–3.0M SteamSpy 1M–2M	Est. revenue $5.0M–$13.5M after Steam's cut $9.1M–$20.8M before the cut	$9.99	29k reviews Overwhelmingly Positive	FPSClassic
Montaro 2016	Est. copies ≈ 507k–823k SteamSpy 200k–500k	Est. revenue $138k–$371k after Steam's cut $251k–$570k before the cut	$0.99	12k reviews Overwhelmingly Positive	MemesCute
Half-Life: Opposing Force 1999	Est. copies ≈ 1.8M–3.0M SteamSpy 2M–5M	Est. revenue $2.5M–$6.7M after Steam's cut $4.6M–$10.4M before the cut	$4.99	29k reviews Overwhelmingly Positive	FPSAction
Quake 2007	Est. copies ≈ 1.0M–1.7M SteamSpy 1M–2M	Est. revenue $2.8M–$7.6M after Steam's cut $5.1M–$11.7M before the cut	$9.99	16k reviews Overwhelmingly Positive	FPSClassic
Half-Life 1998	Est. copies ≈ 10.3M–16.8M 7.7x vs typical SteamSpy 10M–20M	Est. revenue $28.4M–$76.4M after Steam's cut $51.6M–$117.5M before the cut	$9.99	164k reviews Overwhelmingly Positive	FPSClassic
DUSK 2018	Est. copies ≈ 774k–1.3M SteamSpy 1M–2M	Est. revenue $4.3M–$11.4M after Steam's cut $7.7M–$17.6M before the cut	$19.99	25k reviews Overwhelmingly Positive	Boomer ShooterFPS
Warhammer 40,000: Boltgun 2023	Est. copies ≈ 449k–729k SteamSpy 200k–500k	Est. revenue $2.7M–$7.3M after Steam's cut $4.9M–$11.2M before the cut	$21.99	18k reviews Very Positive	Boomer ShooterFPS
Half-Life: Blue Shift 2001	Est. copies ≈ 1.3M–2.2M SteamSpy 1M–2M	Est. revenue $1.8M–$4.9M after Steam's cut $3.3M–$7.6M before the cut	$4.99	21k reviews Very Positive	FPSAction