How many copies did NGU IDLE sell?

373k to 606k copies, based on its 13k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did NGU IDLE make?

NGU IDLE is free to play, so there is no copy-sales revenue to estimate.

How big is NGU IDLE?

Estimated owners: ≈ 373k–606k; from 13k reviews (Overwhelmingly 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 NGU IDLE out and predicted the genre from its 8 similar games. Every figure here, including NGU IDLE's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 670k–954k

best case 4.0M (Clicker Heroes)

Games like NGU IDLE

The middle of these games

≈ 670k–954k copies

≈ $458k after Steam's cut

from ~17k 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: Clicker Heroes at ≈ 3.0M–4.9M copies. A breakout hit, far above a typical game.

What it took to get here

About half the games that made it here had over 4k reviews in their first month; the spread ran 1k to 26k.

The genre you'd be entering

Your set: Your set clusters on Clicker (7 of 8) and Idler (6 of 8).
The winners: Winners here lead with Clicker + Idler. The breakout hits carry Management + Capitalism + Automation; a typical game here doesn't.
The era: The games you compared span 2014 to 2025, and 1 of your 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 70 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
Leaf Blower Revolution - Idle Game 2020	Est. copies ≈ 656k–1.1M 1.5x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	26k reviews Very Positive	IdlerClicker
Idle Champions of the Forgotten Realms 2020	Est. copies ≈ 373k–606k SteamSpy 1M–2M	Est. revenue Free	Free	15k reviews Mostly Positive	Dungeons & DragonsFree to Play
AdVenture Capitalist 2015	Est. copies ≈ 2.9M–4.8M 3.5x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	60k reviews Very Positive	ClickerIdler
Mr.Mine 2020	Est. copies ≈ 462k–751k SteamSpy 500k–1M	Est. revenue Free	Free	19k reviews Very Positive	IdlerClicker
IdleOn - The Incremental MMO 2025	Est. copies ≈ 736k–1.2M 1.7x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	30k reviews Mostly Positive	IdlerPixel Graphics
Clicker Heroes 2015	Est. copies ≈ 3.0M–4.9M 3.6x vs typical SteamSpy 5M–10M	Est. revenue Free	Free	62k reviews Very Positive	ClickerIdler
Mountain 2014	Est. copies ≈ 912k–1.5M SteamSpy 500k–1M	Est. revenue $248k–$668k after Steam's cut $452k–$1.0M before the cut	$0.99	16k reviews Very Positive	SimulationIndie
Sakura Clicker 2015	Est. copies ≈ 699k–1.1M SteamSpy 1M–2M	Est. revenue Free	Free	14k reviews Very Positive	NudityFree to Play