How many copies did Legend of Keepers: Prologue sell?

68k to 111k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Legend of Keepers: Prologue make?

Legend of Keepers: Prologue is free to play, so there is no copy-sales revenue to estimate.

How big is Legend of Keepers: Prologue?

Estimated owners: ≈ 68k–111k; from 2k 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 Legend of Keepers: Prologue out and predicted the genre from its 8 similar games. Every figure here, including Legend of Keepers: Prologue's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 272k–698k

best case 8.8M (Darkest Dungeon®)

Games like Legend of Keepers: Prologue

The middle of these games

≈ 272k–698k copies

≈ $2.6M–$9.1M after Steam's cut

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: Darkest Dungeon® at ≈ 6.7M–10.9M copies, ≈ $46.2M–$124.2M 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 6k reviews in their first month; the spread ran 1k to 8k.

The genre you'd be entering

Your set: Your set clusters on Rogue-like (6 of 8) and Dark Fantasy (4 of 8).
The winners: Winners here lead with Turn-Based Combat + Dark Fantasy, priced around $25. The breakout hits carry Difficult + Lovecraftian + Turn-Based Combat; a typical game here doesn't.
The era: The games you compared span 2016 to 2023, 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

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Darkest Dungeon® II 2023	Est. copies ≈ 664k–1.1M 2.0x vs typical SteamSpy 1M–2M	Est. revenue $7.3M–$19.6M after Steam's cut $13.3M–$30.2M before the cut	$39.99	27k reviews Mostly Positive	Turn-Based Tactics Dungeon Crawler
Black Book 2021	Est. copies ≈ 167k–271k SteamSpy 200k–500k	Est. revenue $1.1M–$3.1M after Steam's cut $2.1M–$4.7M before the cut	$24.99	7k reviews Very Positive	Card BattlerTurn-Based Tactics
Backpack Hero 2023	Est. copies ≈ 211k–342k SteamSpy 500k–1M	Est. revenue $1.2M–$3.1M after Steam's cut $2.1M–$4.8M before the cut	$19.99	8k reviews Very Positive	Replay ValueTurn-Based
Stoneshard 2020	Est. copies ≈ 880k–1.4M 2.7x vs typical SteamSpy 1M–2M	Est. revenue $6.0M–$16.3M after Steam's cut $11.0M–$25.0M before the cut	$24.99	35k reviews Mostly Positive	RPGRogue-like
Darkest Dungeon® 2016	Est. copies ≈ 6.7M–10.9M 12x vs typical SteamSpy 2M–5M	Est. revenue $46.2M–$124.2M after Steam's cut $84.0M–$191.0M before the cut	$24.99	162k reviews Very Positive	Turn-Based CombatDark Fantasy
Gloomhaven 2021	Est. copies ≈ 399k–649k SteamSpy 500k–1M	Est. revenue $3.8M–$10.3M after Steam's cut $7.0M–$15.9M before the cut	$34.99	16k reviews Very Positive	Online Co-OpDark Fantasy
Iratus: Lord of the Dead 2020	Est. copies ≈ 205k–332k SteamSpy 500k–1M	Est. revenue $1.7M–$4.5M after Steam's cut $3.1M–$7.0M before the cut	$29.99	8k reviews Very Positive	RPGStrategy
Across the Obelisk 2022	Est. copies ≈ 325k–527k SteamSpy 1M–2M	Est. revenue $1.8M–$4.8M after Steam's cut $3.2M–$7.4M before the cut	$19.99	13k reviews Very Positive	Rogue-likeStrategy