How many copies did Ultimate Custom Night sell?

1.9M to 3.1M copies, based on its 62k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Ultimate Custom Night make?

Ultimate Custom Night is free to play, so there is no copy-sales revenue to estimate.

How big is Ultimate Custom Night?

Estimated owners: ≈ 1.9M–3.1M; from 62k 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 Ultimate Custom Night out and predicted the genre from its 8 similar games. Every figure here, including Ultimate Custom Night's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 15.5M–29.1M

best case 40.0M (Wallpaper Engine)

The Sandbox genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 15.5M–29.1M copies

≈ $78.4M–$151.8M after Steam's cut

from ~384k reviews

Best case

≈ 30.5M–49.6M copies

Wallpaper Engine · ≈ $41.9M–$112.5M after Steam's cut

The genre you'd be entering

Your set: Your set clusters on Sandbox (3 of 8) and Co-op (2 of 8).
The winners: Winners here lead with Mature + Utilities, priced around $5.
The era: The games you compared span 2013 to 2019, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Geometry Dash 2014	Est. copies ≈ 32.4M–52.6M 1.6x vs typical SteamSpy 5M–10M	Est. revenue $44.4M–$119.5M after Steam's cut $80.8M–$183.9M before the cut	$4.99	623k reviews Very Positive	DifficultMusic
Bloons TD 6 2018	Est. copies ≈ 11.9M–19.3M SteamSpy 2M–5M	Est. revenue $45.7M–$122.9M after Steam's cut $83.1M–$189.2M before the cut	$13.99	391k reviews Overwhelmingly Positive	Tower DefenseStrategy
Wallpaper Engine 2018	Est. copies ≈ 30.5M–49.6M 2.6x vs typical SteamSpy 20M–50M	Est. revenue $41.9M–$112.5M after Steam's cut $76.1M–$173.1M before the cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
Path of Exile 2013	Est. copies ≈ 12.9M–20.9M SteamSpy 20M–50M	Est. revenue Free	Free	248k reviews Very Positive	Free to PlayDark Fantasy
Cities: Skylines 2015	Est. copies ≈ 13.5M–21.9M SteamSpy 10M–20M	Est. revenue $111.2M–$298.9M after Steam's cut $202.2M–$459.9M before the cut	$29.99	291k reviews Very Positive	City Builder Simulation
Unturned 2017	Est. copies ≈ 19.4M–31.5M SteamSpy 50M–100M	Est. revenue Free	Free	564k reviews Very Positive	Free to PlaySurvival
People Playground 2019	Est. copies ≈ 9.1M–14.8M SteamSpy 5M–10M	Est. revenue $24.9M–$67.1M after Steam's cut $45.4M–$103.2M before the cut	$9.99	315k reviews Overwhelmingly Positive	SandboxGore
Subnautica 2018	Est. copies ≈ 11.5M–18.6M SteamSpy 5M–10M	Est. revenue $94.5M–$254.0M after Steam's cut $171.8M–$390.8M before the cut	$29.99	377k reviews Overwhelmingly Positive	Open World Survival CraftSurvival