How many copies did Operation: Harsh Doorstop sell?

516k to 838k copies, based on its 21k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Operation: Harsh Doorstop make?

Operation: Harsh Doorstop is free to play, so there is no copy-sales revenue to estimate.

How big is Operation: Harsh Doorstop?

Estimated players who have it: ≈ 516k–838k; from 21k reviews (Mostly 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 Operation: Harsh Doorstop and predicted how it would do from its 8 similar games. Every figure here, including Operation: Harsh Doorstop's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 3.0M–4.2M

best case 65.2M (War Thunder)

Games like Operation: Harsh Doorstop

A typical game among these

≈ 3.0M–4.2M copies

≈ $29.2M–$37.2M after Steam's cut

from ~81k 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.

These similar games lean toward the genre's biggest winners; the typical figure comes from its ordinary successes.

Best case: War Thunder at ≈ 49.7M–80.7M copies. It is a breakout hit, far above a typical game.

The genre you'd be entering

These games: The similar games share FPS (6 of 8) and Shooter (6 of 8).
The winners: Winners here lead with Tanks + Shooter, priced around $40. The breakout hits carry Tactical; a typical game here doesn't.
When they shipped: The similar games span 2013 to 2020, 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
Warface: Clutch 2014	Est. copies ≈ 4.6M–7.4M SteamSpy 20M–50M	Est. revenue Free	Free	81k reviews Mixed	Free to PlayFPS
World of Tanks Blitz 2016	Est. copies ≈ 6.4M–10.4M 1.9x vs typical SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play
Black Squad 2019	Est. copies ≈ 2.3M–3.8M SteamSpy 10M–20M	Est. revenue Free	Free	81k reviews Mostly Positive	Free to PlayFPS
Ravenfield 2017	Est. copies ≈ 2.8M–4.5M SteamSpy 1M–2M	Est. revenue $13.6M–$36.7M after Steam's cut $24.8M–$56.4M before Steam's cut	$17.99	80k reviews Overwhelmingly Positive	FPSWar
Squad 2020	Est. copies ≈ 6.0M–9.8M 3.0x vs typical SteamSpy 2M–5M	Est. revenue $66.5M–$178.7M after Steam's cut $120.8M–$274.9M before Steam's cut	$39.99	244k reviews Very Positive	MilitaryRealistic
World of Warships 2017	Est. copies ≈ 5.4M–8.8M 1.9x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	157k reviews Mostly Positive	Free to PlayNaval Combat
War Thunder 2013	Est. copies ≈ 49.7M–80.7M 9.7x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	786k reviews Mostly Positive	Free to PlaySimulation
Battlefield 4™ 2020	Est. copies ≈ 2.0M–3.3M SteamSpy 1M–2M	Est. revenue $22.4M–$60.1M after Steam's cut $40.7M–$92.5M before Steam's cut	$39.99	82k reviews Very Positive	MultiplayerFPS