How much revenue did Sigma Theory: Global Cold War make?

$197k–$531k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Sigma Theory: Global Cold War sell?

Q: How many copies did Sigma Theory: Global Cold War sell?

40k to 65k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 40k–65k; $197k–$531k after Steam's cut $359k–$816k before Steam's cut; from 1k reviews (Mostly 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 Sigma Theory: Global Cold War and predicted how it would do from its 8 similar games. Every figure here, including Sigma Theory: Global Cold War's, is estimated from Steam reviews.

Copies, estimated from reviews

typical (middle half) 592k–1.8M

best case 2.0M (Victoria 3)

Games like Sigma Theory: Global Cold War

A typical game among these

≈ 592k–1.8M copies

≈ $6.3M–$16.1M after Steam's cut

from ~24k 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: Victoria 3 at ≈ 1.6M–2.5M copies, ≈ $21.4M–$57.4M after Steam's cut.

What their first month looked like

About half the games that made it here had over 3k reviews in their first month; the range was 3k to 20k.

The genre you'd be entering

These games: The similar games share Simulation (7 of 8) and Political Sim (6 of 8).
The winners: Winners here lead with Grand Strategy + Economy, priced around $50.
When they shipped: The similar games span 2010 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
Eco 2018	Est. copies ≈ 428k–696k SteamSpy 500k–1M	Est. revenue $3.5M–$9.5M after Steam's cut $6.4M–$14.6M before Steam's cut	$29.99	14k reviews Very Positive	Early AccessSimulation
Victoria II 2010	Est. copies ≈ 1.3M–2.1M SteamSpy 1M–2M	Est. revenue $7.2M–$19.5M after Steam's cut $13.2M–$29.9M before Steam's cut	$19.99	21k reviews Very Positive	Grand StrategyStrategy
Democracy 3 2013	Est. copies ≈ 459k–745k SteamSpy 200k–500k	Est. revenue $3.2M–$8.5M after Steam's cut $5.7M–$13.0M before Steam's cut	$24.99	7k reviews Mostly Positive	Political SimSimulation
WorldBox - God Simulator 2021	Est. copies ≈ 1.4M–2.3M 2.4x vs typical SteamSpy 1M–2M	Est. revenue $7.8M–$20.9M after Steam's cut $14.1M–$32.1M before Steam's cut	$19.99	57k reviews Overwhelmingly Positive	SandboxGod Game
Victoria 3 2022	Est. copies ≈ 1.6M–2.5M 2.6x vs typical SteamSpy 1M–2M	Est. revenue $21.4M–$57.4M after Steam's cut $38.8M–$88.4M before Steam's cut	$49.99	63k reviews Mixed	Grand StrategyEconomy
Tropico 6 2019	Est. copies ≈ 851k–1.4M SteamSpy 1M–2M	Est. revenue $9.4M–$25.2M after Steam's cut $17.0M–$38.7M before Steam's cut	$39.99	30k reviews Very Positive	City BuilderStrategy
Rebel Inc: Escalation 2021	Est. copies ≈ 189k–307k SteamSpy 200k–500k	Est. revenue $778k–$2.1M after Steam's cut $1.4M–$3.2M before Steam's cut	$14.99	8k reviews Very Positive	StrategySimulation
Imperator: Rome 2019	Est. copies ≈ 773k–1.3M SteamSpy 1M–2M	Est. revenue $8.5M–$22.8M after Steam's cut $15.5M–$35.2M before Steam's cut	$39.99	27k reviews Mixed	StrategyGrand Strategy