How much revenue did Sumerian Six make?

$254k–$682k after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Sumerian Six sell?

Q: How many copies did Sumerian Six sell?

31k to 50k copies, based on its 1k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 31k–50k; $254k–$682k after Steam's cut $462k–$1.0M before the cut; from 1k 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 Sumerian Six out and predicted the genre from its 8 similar games. Every figure here, including Sumerian Six's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 2.3M–3.1M

best case 7.9M (ULTRAKILL)

Games like Sumerian Six

The middle of these games

≈ 2.3M–3.1M copies

≈ $15.6M–$43.5M after Steam's cut

from ~70k 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.

No genre covers most of your similar games. The closest is Sandbox (3 of 8), so the genre you lead with is still undecided.

Of the 416 indie games that passed 1,000 reviews in 2022, 11.8% were novel genre mixes and 88.2% stuck to an established genre. Published indie market research.

Best case: ULTRAKILL at ≈ 6.0M–9.7M copies, ≈ $49.4M–$132.9M after Steam's cut. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 19k reviews in their first month; the spread ran 115 to 55k.

The genre you'd be entering

Your set: Your set clusters on Sandbox (3 of 8) and Simulation (3 of 8).
The winners: Winners here lead with Battle Royale + Racing, priced around $25.
The era: The games you compared span 2016 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 52 for the oldest, then widened into a range; revenue rides on that estimate times price. Source: GameDiscoverCo (2020) and VG Insights (2021).

Similar games

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Stumble Guys 2021	Est. copies ≈ 3.4M–5.6M 2.0x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	138k reviews Very Positive	Free to PlayBattle Royale
Totally Accurate Battle Simulator 2021	Est. copies ≈ 3.8M–6.2M 2.2x vs typical SteamSpy 2M–5M	Est. revenue $20.9M–$56.2M after Steam's cut $38.0M–$86.5M before the cut	$19.99	153k reviews Overwhelmingly Positive	SandboxSimulation
Planet Coaster 2016	Est. copies ≈ 3.0M–4.9M SteamSpy 2M–5M	Est. revenue $37.1M–$99.8M after Steam's cut $67.5M–$153.6M before the cut	$44.99	72k reviews Very Positive	SimulationBuilding
Five Nights at Freddy's: Security Breach 2021	Est. copies ≈ 1.7M–2.8M SteamSpy 1M–2M	Est. revenue $19.1M–$51.3M after Steam's cut $34.7M–$78.9M before the cut	$39.99	70k reviews Very Positive	HorrorSingleplayer
PowerWash Simulator 2022	Est. copies ≈ 1.5M–2.4M SteamSpy 1M–2M	Est. revenue $10.0M–$26.8M after Steam's cut $18.2M–$41.3M before the cut	$24.99	59k reviews Overwhelmingly Positive	CasualRelaxing
ULTRAKILL 2020	Est. copies ≈ 6.0M–9.7M 3.5x vs typical SteamSpy 5M–10M	Est. revenue $49.4M–$132.9M after Steam's cut $89.9M–$204.5M before the cut	$29.99	242k reviews Overwhelmingly Positive	Boomer ShooterFast-Paced
Minion Masters 2019	Est. copies ≈ 1.9M–3.1M SteamSpy 500k–1M	Est. revenue Free	Free	65k reviews Very Positive	PvETrading Card Game
A Dance of Fire and Ice 2019	Est. copies ≈ 2.4M–3.9M SteamSpy 2M–5M	Est. revenue $4.0M–$10.6M after Steam's cut $7.2M–$16.4M before the cut	$5.99	83k reviews Very Positive	RhythmMusic