How many copies did Stronghold Kingdoms sell?

606k to 985k 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 players who have it: ≈ 606k–985k; from 10k reviews (Mixed)

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 Stronghold Kingdoms and predicted how it would do from its 8 similar games. Every figure here, including Stronghold Kingdoms's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 8.8M–14.8M

best case 125.7M (PUBG: BATTLEGROUNDS)

Games like Stronghold Kingdoms

A typical game among these

≈ 8.8M–14.8M copies

≈ $90.4M–$108.9M after Steam's cut

from ~345k 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.

Best case: PUBG: BATTLEGROUNDS at ≈ 95.8M–155.7M copies. It is a breakout hit, far above a typical game.

The genre you'd be entering

These games: The similar games share FPS (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.
When they shipped: The similar games 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–11.4M SteamSpy 5M–10M	Est. revenue Free	Free	203k reviews Very Positive	HuntingOpen World
Bloons TD 6 2018	Est. copies ≈ 12.0M–19.6M SteamSpy 2M–5M	Est. revenue $46.3M–$124.5M after Steam's cut $84.2M–$191.5M before Steam's cut	$13.99	396k reviews Overwhelmingly Positive	Tower DefenseStrategy
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 95.8M–155.7M 8.1x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.8M 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 ≈ 49.7M–80.7M 2.3x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	786k reviews Mostly Positive	Free to PlaySimulation
Squad 2020	Est. copies ≈ 6.0M–9.8M 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
Raft 2022	Est. copies ≈ 9.4M–15.3M SteamSpy 10M–20M	Est. revenue $51.7M–$139.0M after Steam's cut $94.0M–$213.8M before Steam's cut	$19.99	379k reviews Very Positive	SurvivalMultiplayer