How much revenue did Roads Of Rome: Portals 2 Collector’s Edition make?

$817–$2k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Roads Of Rome: Portals 2 Collector’s Edition sell?

Q: How many copies did Roads Of Rome: Portals 2 Collector’s Edition sell?

496 to 806 copies, based on its 20 Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 496–806; $817–$2k after Steam's cut $1k–$3k before Steam's cut; from 20 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 Roads Of Rome: Portals 2 Collector’s Edition and predicted how it would do from its 8 similar games. Every figure here, including Roads Of Rome: Portals 2 Collector’s Edition's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 262k–1.2M

best case 20.7M (Sid Meier’s Civilization® VI)

Games like Roads Of Rome: Portals 2 Collector’s Edition

A typical game among these

≈ 262k–1.2M copies

≈ $1.1M–$27.3M after Steam's cut

from ~18k 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: Sid Meier’s Civilization® VI at ≈ 15.8M–25.7M copies, ≈ $260.5M–$700.4M after Steam's cut.

What their first month looked like

About half the games that made it here had over 14k reviews in their first month; the range was 735 to 35k.

The genre you'd be entering

These games: The similar games share 4X (6 of 8) and Turn-Based Strategy (6 of 8).
The winners: Winners here lead with Turn-Based Strategy + Historical, priced around $60.
When they shipped: The similar games span 2006 to 2025, 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 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
Rebuild 3: Gangs of Deadsville 2015	Est. copies ≈ 100k–163k SteamSpy 100k–200k	Est. revenue $412k–$1.1M after Steam's cut $750k–$1.7M before Steam's cut	$14.99	2k reviews Very Positive	Colony Sim Survival
Dorfromantik 2022	Est. copies ≈ 735k–1.2M 1.6x vs typical SteamSpy 1M–2M	Est. revenue $2.8M–$7.6M after Steam's cut $5.1M–$11.7M before Steam's cut	$13.99	30k reviews Overwhelmingly Positive	PuzzleRelaxing
Sid Meier’s Civilization® VI 2016	Est. copies ≈ 15.8M–25.7M 21x vs typical SteamSpy 10M–20M	Est. revenue $260.5M–$700.4M after Steam's cut $473.7M–$1077.6M before Steam's cut	$59.99	380k reviews Very Positive	StrategyTurn-Based Strategy
Sid Meier's Civilization VII 2025	Est. copies ≈ 1.5M–2.5M 3.4x vs typical SteamSpy 1M–2M	Est. revenue $29.7M–$79.9M after Steam's cut $54.1M–$123.0M before Steam's cut	$69.99	62k reviews Mixed	Grand StrategyHistorical
HUMANKIND™ 2021	Est. copies ≈ 715k–1.2M 1.6x vs typical SteamSpy 1M–2M	Est. revenue $9.8M–$26.4M after Steam's cut $17.9M–$40.7M before Steam's cut	$49.99	29k reviews Mixed	StrategyTurn-Based Strategy
Sid Meier's Civilization® III Complete 2006	Est. copies ≈ 494k–803k SteamSpy 1M–2M	Est. revenue $678k–$1.8M after Steam's cut $1.2M–$2.8M before Steam's cut	$4.99	8k reviews Very Positive	StrategyTurn-Based Strategy
Sid Meier's Civilization® IV 2006	Est. copies ≈ 233k–378k SteamSpy 1M–2M	Est. revenue $1.3M–$3.4M after Steam's cut $2.3M–$5.3M before Steam's cut	$19.99	4k reviews Very Positive	StrategyTurn-Based Strategy
dotAGE 2023	Est. copies ≈ 67k–108k SteamSpy 100k–200k	Est. revenue $322k–$866k after Steam's cut $585k–$1.3M before Steam's cut	$17.59	3k reviews Overwhelmingly Positive	Resource ManagementTurn-Based