How many copies did Realm Grinder sell?

256k to 416k copies, based on its 7k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Realm Grinder make?

Realm Grinder is free to play, so there is no copy-sales revenue to estimate.

How big is Realm Grinder?

Estimated owners: ≈ 256k–416k; from 7k 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 Realm Grinder out and predicted the genre from its 8 similar games. Every figure here, including Realm Grinder's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 350k–875k

best case 966k (IdleOn - The Incremental MMO)

Games like Realm Grinder

The middle of these games

≈ 350k–875k copies

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: IdleOn - The Incremental MMO at ≈ 736k–1.2M copies.

What it took to get here

About half the games that made it here had over 2k reviews in their first month; the spread ran 114 to 26k.

The genre you'd be entering

Your set: Your set clusters on Clicker (7 of 8) and Idler (5 of 8).
The winners: Winners here lead with Idler + MMORPG.
The era: The games you compared span 2015 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 61 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
PickCrafter 2017	Est. copies ≈ 246k–400k SteamSpy 500k–1M	Est. revenue Free	Free	7k reviews Very Positive	MiningIdler
Mr.Mine 2020	Est. copies ≈ 462k–751k SteamSpy 500k–1M	Est. revenue Free	Free	19k reviews Very Positive	IdlerClicker
Idle Slayer 2020	Est. copies ≈ 268k–435k SteamSpy 500k–1M	Est. revenue Free	Free	11k reviews Very Positive	CasualIdler
Leaf Blower Revolution - Idle Game 2020	Est. copies ≈ 656k–1.1M 2.1x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	26k reviews Very Positive	IdlerClicker
IdleOn - The Incremental MMO 2025	Est. copies ≈ 736k–1.2M 2.4x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	30k reviews Mostly Positive	IdlerPixel Graphics
Sakura Clicker 2015	Est. copies ≈ 699k–1.1M SteamSpy 1M–2M	Est. revenue Free	Free	14k reviews Very Positive	NudityFree to Play
Loading Screen Simulator 2017	Est. copies ≈ 296k–480k SteamSpy 200k–500k	Est. revenue Free	Free	9k reviews Very Positive	Free to PlayMemes
Coloring Pixels 2018	Est. copies ≈ 263k–427k SteamSpy 500k–1M	Est. revenue Free	Free	9k reviews Overwhelmingly Positive	Free to PlayPixel Graphics