How much revenue did Foundation make?

$5.9M–$15.7M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Foundation sell?

Q: How many copies did Foundation sell?

608k to 988k copies, based on its 25k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 608k–988k; $5.9M–$15.7M after Steam's cut $10.6M–$24.2M before Steam's cut; from 25k reviews (Very Positive)

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 Foundation and predicted how it would do from its 4 similar games. Every figure here, including Foundation's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 640k–1.8M

best case 3.0M (Manor Lords)

Games like Foundation

A typical game among these

≈ 640k–1.8M copies

≈ $8.4M–$20.2M after Steam's cut

from ~29k 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 4 of the similar games are hits.

This comes from a small set of games, so take it as a sketch.

Best case: Manor Lords at ≈ 2.3M–3.7M copies, ≈ $25.3M–$68.1M after Steam's cut.

What their first month looked like

About half the games that made it here had over 22k reviews in their first month; the range was 1k to 44k.

The genre you'd be entering

These games: The similar games share City Builder (4 of 4) and Medieval (3 of 4).
The winners: Winners here lead with City Builder + Simulation, priced around $40.
When they shipped: 3 of the 4 similar games shipped in the last two years. You'd be launching into a busy stretch.

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 43 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
Farthest Frontier 2025	Est. copies ≈ 638k–1.0M SteamSpy 1M–2M	Est. revenue $6.1M–$16.5M after Steam's cut $11.2M–$25.4M before Steam's cut	$34.99	26k reviews Very Positive	Early AccessHistorical
Laysara: Summit Kingdom 2026	Est. copies ≈ 37k–60k SteamSpy 50k–100k	Est. revenue $255k–$687k after Steam's cut $465k–$1.1M before Steam's cut	$24.99	1k reviews Very Positive	StrategyCity Builder
Kingdoms and Castles 2017	Est. copies ≈ 1.1M–1.8M SteamSpy 1M–2M	Est. revenue $6.0M–$16.0M after Steam's cut $10.8M–$24.6M before Steam's cut	$19.99	32k reviews Very Positive	City Builder Colony Sim
Manor Lords 2024	Est. copies ≈ 2.3M–3.7M 3.2x vs typical 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