How many copies did Idle Monster TD sell?

21k to 34k copies, based on its 853 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Idle Monster TD make?

Idle Monster TD is free to play, so there is no copy-sales revenue to estimate.

How big is Idle Monster TD?

Estimated owners: ≈ 21k–34k; from 853 reviews (Mostly 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 Idle Monster TD out and predicted the genre from its 8 similar games. Every figure here, including Idle Monster TD's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 17k–116k

best case 312k (Time Clickers)

The Tower Defense genre

3 of your 8 similar games are hits. A niche genre: plan for a small audience.

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

A typical game

≈ 17k–116k copies

≈ $37k–$70k after Steam's cut

from ~716 reviews

Best case

≈ 237k–386k copies

Time Clickers

The genre you'd be entering

Your set: Your set clusters on Tower Defense (6 of 8) and Idler (4 of 8).
The winners: Winners here lead with Clicker + Shooter, priced around $5.
The era: 4 of your 8 similar games shipped in the last two years, so this niche is actively shipping.

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

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Space Cycle 2024	Est. copies ≈ 5k–8k SteamSpy under 20k	Est. revenue $3k–$7k after Steam's cut $5k–$11k before the cut	$1.99	194 reviews Very Positive	Rogue-lite Tower Defense
Samawa Idle 2023	Est. copies ≈ 15k–24k SteamSpy 100k–200k	Est. revenue $20k–$54k after Steam's cut $37k–$83k before the cut	$4.99	612 reviews Mixed	ClickerIdler
The Perfect Tower II 2025	Est. copies ≈ 105k–170k 6.1x vs typical SteamSpy 200k–500k	Est. revenue Free	Free	4k reviews Very Positive	StrategyIdler
Time Clickers 2015	Est. copies ≈ 237k–386k 7.2x vs typical SteamSpy 500k–1M	Est. revenue Free	Free	5k reviews Very Positive	ClickerFree to Play
Doom Sweeper 2024	Est. copies ≈ 20k–32k SteamSpy 50k–100k	Est. revenue $27k–$73k after Steam's cut $49k–$112k before the cut	$4.99	819 reviews Mostly Positive	Action RoguelikeHack and Slash
Legendary Hoplite 2024	Est. copies ≈ 9k–15k SteamSpy 50k–100k	Est. revenue $38k–$102k after Steam's cut $69k–$156k before the cut	$14.99	382 reviews Mixed	Strategy RPGRogue-lite
Grow Defense 2021	Est. copies ≈ 15k–24k SteamSpy 200k–500k	Est. revenue Free	Free	606 reviews Mostly Positive	CasualIdler
Screeps: World 2016	Est. copies ≈ 83k–135k 2.9x vs typical SteamSpy 200k–500k	Est. revenue $458k–$1.2M after Steam's cut $832k–$1.9M before the cut	$19.99	2k reviews Very Positive	ProgrammingStrategy