How much revenue did Castle Story make?

$1.0M–$2.7M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Castle Story sell?

Q: How many copies did Castle Story sell?

367k to 596k copies, based on its 11k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 367k–596k; $1.0M–$2.7M after Steam's cut $1.8M–$4.2M before Steam's cut; from 11k 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 Castle Story and predicted how it would do from its 8 similar games. Every figure here, including Castle Story's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 3.0M–5.5M

best case 9.9M (RimWorld)

Games like Castle Story

A typical game among these

≈ 3.0M–5.5M copies

≈ $39.9M–$58.8M after Steam's cut

from ~111k 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: RimWorld at ≈ 7.6M–12.3M copies, ≈ $72.7M–$195.4M after Steam's cut.

The genre you'd be entering

These games: The similar games share Base-Building (7 of 8) and Colony Sim (6 of 8).
The winners: Winners here lead with Colony Sim + Base-Building, priced around $35.
When they shipped: The similar games span 2015 to 2024, and 1 of the 8 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 61 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
Northgard: Definitive Edition 2018	Est. copies ≈ 2.1M–3.4M SteamSpy 2M–5M	Est. revenue $20.1M–$54.1M after Steam's cut $36.6M–$83.2M before Steam's cut	$34.99	69k reviews Very Positive	StrategyCity Builder
Prison Architect 2015	Est. copies ≈ 3.8M–6.1M SteamSpy 5M–10M	Est. revenue $31.0M–$83.3M after Steam's cut $56.3M–$128.2M before Steam's cut	$29.99	77k reviews Very Positive	SimulationBuilding
RimWorld 2018	Est. copies ≈ 7.6M–12.3M 2.2x vs typical SteamSpy 5M–10M	Est. revenue $72.7M–$195.4M after Steam's cut $132.2M–$300.7M before Steam's cut	$34.99	249k reviews Overwhelmingly Positive	Colony SimBase-Building
They Are Billions 2019	Est. copies ≈ 1.5M–2.4M SteamSpy 2M–5M	Est. revenue $12.2M–$32.9M after Steam's cut $22.2M–$50.6M before Steam's cut	$29.99	52k reviews Very Positive	Base-BuildingColony Sim
Oxygen Not Included 2019	Est. copies ≈ 4.1M–6.7M SteamSpy 2M–5M	Est. revenue $28.5M–$76.7M after Steam's cut $51.9M–$118.0M before Steam's cut	$24.99	144k reviews Overwhelmingly Positive	Colony SimBase-Building
Manor Lords 2024	Est. copies ≈ 2.3M–3.7M SteamSpy 2M–5M	Est. revenue $25.3M–$68.1M after Steam's cut $46.1M–$104.8M before Steam's cut	$39.99	93k reviews Very Positive	StrategyCity Builder
Frostpunk 2018	Est. copies ≈ 4.2M–6.8M SteamSpy 2M–5M	Est. revenue $34.5M–$92.8M after Steam's cut $62.8M–$142.8M before Steam's cut	$29.99	138k reviews Very Positive	City Builder Survival
Cult of the Lamb 2022	Est. copies ≈ 3.2M–5.2M SteamSpy 2M–5M	Est. revenue $22.2M–$59.6M after Steam's cut $40.3M–$91.7M before Steam's cut	$24.99	130k reviews Overwhelmingly Positive	Base-BuildingCute