How many copies did Stronghold Kingdoms sell?

605k to 983k 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: ≈ 605k–983k; 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–14.8M

best case 124.1M (PUBG: BATTLEGROUNDS)

Games like Stronghold Kingdoms

The middle of these games

≈ 8.7M–14.8M copies

≈ $90.0M–$108.5M after Steam's cut

from ~345k 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: PUBG: BATTLEGROUNDS at ≈ 94.5M–153.6M copies. 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. 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, 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
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 ≈ 7.0M–11.3M SteamSpy 5M–10M	Est. revenue Free	Free	202k reviews Very Positive	HuntingOpen World
Bloons TD 6 2018	Est. copies ≈ 12.0M–19.5M SteamSpy 2M–5M	Est. revenue $46.1M–$124.0M after Steam's cut $83.8M–$190.7M before the cut	$13.99	394k reviews Overwhelmingly Positive	Tower DefenseStrategy
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 94.5M–153.6M 8.0x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter
World of Tanks Blitz 2016	Est. copies ≈ 6.4M–10.4M SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play
War Thunder 2013	Est. copies ≈ 49.3M–80.1M 2.3x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	780k reviews Mostly Positive	Free to PlaySimulation
Squad 2020	Est. copies ≈ 6.0M–9.8M SteamSpy 2M–5M	Est. revenue $66.2M–$178.0M after Steam's cut $120.4M–$273.9M before the cut	$39.99	243k reviews Very Positive	MilitaryRealistic
Raft 2022	Est. copies ≈ 9.4M–15.2M SteamSpy 10M–20M	Est. revenue $51.5M–$138.4M after Steam's cut $93.6M–$213.0M before the cut	$19.99	378k reviews Very Positive	SurvivalMultiplayer