How many copies did Operation: Harsh Doorstop sell?

An estimated 490k to 796k copies, based on its 20k 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 owners: ≈ 490k–796k; from 20k reviews (Mostly 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 Operation: Harsh Doorstop out and predicted the genre from its 8 similar games. Every figure here, including Operation: Harsh Doorstop's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.0M–4.1M

best case 52.2M (War Thunder)

The Action lane

A big, proven genre, though hit-driven: most sell around 3.3M copies, while a few break out far above.

A typical game

≈ 3.3M copies

≈ $34.1M after Steam's cut

from ~81k reviews

Best case

≈ 52.2M copies

War Thunder

from 765k reviews

A breakout hit, far above a typical game.

4 of your 8 games sit in the typical range; 4 are breakout hits far above it.

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 Tanks + Free to Play, priced around $40.
The breakout hits carry Tactical; a typical game here doesn't.
The games you compared span 2013 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

Game	Price	Reviews	Tags	Est. copies	Est. revenue
Warface: Clutch 2014	Est. copies ≈ 4.2M–6.9M SteamSpy 20M–50M	Est. revenue Free	Free	81k reviews Mixed	Free to PlayFPS +6
World of Tanks Blitz 2016	Est. copies ≈ 6.1M–9.9M 1.9x vs typical SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play +6
Black Squad 2019	Est. copies ≈ 2.3M–3.8M SteamSpy 10M–20M	Est. revenue Free	Free	81k reviews Mostly Positive	Free to PlayFPS +6
Ravenfield 2017	Est. copies ≈ 2.7M–4.4M SteamSpy 1M–2M	Est. revenue $13.5M–$36.3M net $24.6M–$55.9M gross	$17.99	79k reviews Overwhelmingly Positive	FPSWar +6
Squad 2020	Est. copies ≈ 6.3M–10.3M 3.0x vs typical SteamSpy 2M–5M	Est. revenue $69.6M–$187.1M net $126.5M–$287.8M gross	$39.99	240k reviews Very Positive	MilitaryRealistic +6
World of Warships 2017	Est. copies ≈ 5.3M–8.7M 1.9x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	155k reviews Mostly Positive	Free to PlayNaval Combat +6
War Thunder 2013	Est. copies ≈ 39.8M–64.7M 9.5x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	765k reviews Mostly Positive	Free to PlaySimulation +6
Battlefield 4™ 2020	Est. copies ≈ 2.1M–3.5M SteamSpy 1M–2M	Est. revenue $23.4M–$63.0M net $42.6M–$96.9M gross	$39.99	81k reviews Very Positive	MultiplayerFPS +6