How many copies did Stronghold Kingdoms sell?

497k to 808k copies, based on its 10k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Stronghold Kingdoms make?

Stronghold Kingdoms is free to play, so there is no copy-sales revenue to estimate.

How big is Stronghold Kingdoms?

Estimated owners: ≈ 497k–808k; from 10k reviews (Mixed)

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

Copies, estimated from reviews

typical (middle half) 8.7M–14.7M

best case 123.4M (PUBG: BATTLEGROUNDS)

The FPS genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 8.7M–14.7M copies

≈ $80.7M–$100.7M after Steam's cut

from ~345k reviews

Best case

≈ 94.0M–152.8M copies

PUBG: BATTLEGROUNDS

A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on FPS (5 of 8) and Shooter (4 of 8).
The winners: Winners here lead with Survival + Shooter, priced around $20. The breakout hits carry Battle Royale + PvP + Third-Person Shooter; a typical game here doesn't.
The era: The games you compared span 2013 to 2022, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Paladins® 2018	Est. copies ≈ 10.5M–17.1M SteamSpy 10M–20M	Est. revenue Free	Free	345k reviews Very Positive	Hero ShooterFree to Play
theHunter: Call of the Wild™ 2017	Est. copies ≈ 6.9M–11.2M SteamSpy 5M–10M	Est. revenue $37.9M–$102.0M after Steam's cut $69.0M–$156.9M before the cut	$19.99	201k reviews Very Positive	HuntingOpen World
Bloons TD 6 2018	Est. copies ≈ 11.9M–19.3M SteamSpy 2M–5M	Est. revenue $45.7M–$122.9M after Steam's cut $83.1M–$189.2M before the cut	$13.99	391k reviews Overwhelmingly Positive	Tower DefenseStrategy
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 94.0M–152.8M 7.9x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter
World of Tanks Blitz 2016	Est. copies ≈ 6.1M–9.9M SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play
War Thunder 2013	Est. copies ≈ 40.0M–64.9M 2.2x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	768k reviews Mostly Positive	Free to PlaySimulation
Squad 2020	Est. copies ≈ 6.3M–10.3M SteamSpy 2M–5M	Est. revenue $69.8M–$187.6M after Steam's cut $126.9M–$288.6M before the cut	$39.99	240k reviews Very Positive	MilitaryRealistic
Raft 2022	Est. copies ≈ 9.0M–14.7M SteamSpy 10M–20M	Est. revenue $49.6M–$133.3M after Steam's cut $90.1M–$205.0M before the cut	$19.99	376k reviews Very Positive	SurvivalMultiplayer