How much revenue did ZEPHON make?

$517k–$1.4M after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did ZEPHON sell?

Q: How many copies did ZEPHON sell?

47k to 76k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 47k–76k; $517k–$1.4M after Steam's cut $940k–$2.1M before the cut; from 2k reviews (Very Positive)

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 ZEPHON out and predicted the genre from its 8 similar games. Every figure here, including ZEPHON's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 237k–1.2M

best case 17.5M (Sid Meier's Civilization® V)

Games like ZEPHON

The middle of these games

≈ 237k–1.2M copies

≈ $3.2M–$13.9M after Steam's cut

from ~13k 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: Sid Meier's Civilization® V at ≈ 13.3M–21.6M copies, ≈ $109.7M–$295.1M after Steam's cut. A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on 4X (8 of 8) and Turn-Based (7 of 8).
The winners: Winners here lead with Turn-Based Strategy + Turn-Based, priced around $30. The breakout hits carry Addictive + Historical + Singleplayer; a typical game here doesn't.
The era: The games you compared 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
Age of Wonders: Planetfall 2019	Est. copies ≈ 191k–311k SteamSpy 200k–500k	Est. revenue $1.6M–$4.2M after Steam's cut $2.9M–$6.5M before the cut	$29.99	7k reviews Mostly Positive	StrategyTurn-Based Strategy
Sid Meier's Civilization® V 2010	Est. copies ≈ 13.3M–21.6M 16x vs typical SteamSpy 10M–20M	Est. revenue $109.7M–$295.1M after Steam's cut $199.5M–$454.0M before the cut	$29.99	211k reviews Overwhelmingly Positive	Turn-Based StrategyStrategy
Sid Meier's Civilization®: Beyond Earth™ 2014	Est. copies ≈ 1.3M–2.1M 1.8x vs typical SteamSpy 1M–2M	Est. revenue $14.2M–$38.3M after Steam's cut $25.9M–$58.9M before the cut	$39.99	23k reviews Mixed	StrategyTurn-Based Strategy
Age of Wonders III 2014	Est. copies ≈ 717k–1.2M SteamSpy 1M–2M	Est. revenue $5.9M–$15.9M after Steam's cut $10.8M–$24.5M before the cut	$29.99	13k reviews Very Positive	StrategyTurn-Based Strategy
ENDLESS Legend™ 2014	Est. copies ≈ 1.1M–1.7M SteamSpy 2M–5M	Est. revenue $8.8M–$23.7M after Steam's cut $16.0M–$36.4M before the cut	$29.99	19k reviews Very Positive	Strategy4X
Scythe: Digital Edition 2018	Est. copies ≈ 116k–189k SteamSpy 200k–500k	Est. revenue $638k–$1.7M after Steam's cut $1.2M–$2.6M before the cut	$19.99	4k reviews Very Positive	Board GameStrategy
Warhammer 40,000: Gladius - Relics of War 2018	Est. copies ≈ 565k–919k SteamSpy 1M–2M	Est. revenue $6.2M–$16.7M after Steam's cut $11.3M–$25.7M before the cut	$39.99	19k reviews Very Positive	StrategyWarhammer 40K
Old World 2022	Est. copies ≈ 170k–276k SteamSpy 200k–500k	Est. revenue $1.9M–$5.0M after Steam's cut $3.4M–$7.7M before the cut	$39.99	7k reviews Very Positive	StrategySimulation