How many copies did Imperia Online sell?

13k to 22k copies, based on its 319 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Imperia Online make?

Imperia Online is free to play, so there is no copy-sales revenue to estimate.

How big is Imperia Online?

Estimated owners: ≈ 13k–22k; from 319 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 Imperia Online out and predicted the genre from its 8 similar games. Every figure here, including Imperia Online's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 670k–5.0M

best case 4.7M (Crusader Kings III)

Games like Imperia Online

The middle of these games

≈ 670k–5.0M copies

≈ $10.1M–$78.9M after Steam's cut

from ~55k 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: Crusader Kings III at ≈ 3.5M–5.8M copies, ≈ $48.8M–$131.2M after Steam's cut.

What it took to get here

About half the games that made it here had over 12k reviews in their first month; the spread ran 192 to 44k.

The genre you'd be entering

Your set: Your set clusters on Grand Strategy (7 of 8) and Historical (6 of 8).
The winners: Winners here lead with Medieval + Grand Strategy, priced around $50.
The era: The games you compared span 2006 to 2024, and 1 of your 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 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
Europa Universalis IV 2013	Est. copies ≈ 8.7M–14.1M 2.5x vs typical SteamSpy 5M–10M	Est. revenue $119.2M–$320.5M after Steam's cut $216.8M–$493.1M before the cut	$49.99	137k reviews Very Positive	Grand StrategyStrategy
Manor Lords 2024	Est. copies ≈ 2.3M–3.7M 1.6x vs typical SteamSpy 2M–5M	Est. revenue $24.8M–$66.6M after Steam's cut $45.0M–$102.4M before the cut	$39.99	91k reviews Very Positive	StrategyCity Builder
Crusader Kings III 2020	Est. copies ≈ 3.5M–5.8M 2.6x vs typical SteamSpy 2M–5M	Est. revenue $48.8M–$131.2M after Steam's cut $88.7M–$201.9M before the cut	$49.99	143k reviews Very Positive	StrategyMedieval
Stronghold Kingdoms 2012	Est. copies ≈ 605k–983k SteamSpy 200k–500k	Est. revenue Free	Free	10k reviews Mixed	StrategyFree to Play
Knights of Honor II: Sovereign 2022	Est. copies ≈ 166k–270k SteamSpy 100k–200k	Est. revenue $2.1M–$5.5M after Steam's cut $3.7M–$8.5M before the cut	$44.99	7k reviews Mostly Positive	StrategySimulation
Total War: MEDIEVAL II – Definitive Edition 2006	Est. copies ≈ 2.3M–3.7M SteamSpy 1M–2M	Est. revenue $15.8M–$42.5M after Steam's cut $28.7M–$65.3M before the cut	$24.99	36k reviews Overwhelmingly Positive	StrategyMedieval
Songs of Syx 2020	Est. copies ≈ 228k–370k SteamSpy 200k–500k	Est. revenue $1.6M–$4.2M after Steam's cut $2.8M–$6.5M before the cut	$24.99	9k reviews Very Positive	Early AccessCity Builder
Crusader Kings II 2012	Est. copies ≈ 4.7M–7.6M SteamSpy 2M–5M	Est. revenue Free	Free	74k reviews Very Positive	Grand StrategyStrategy