How many copies did Left on Read sell?

An estimated 139k to 225k copies, based on its 5k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Left on Read make?

Left on Read is free to play, so there is no copy-sales revenue to estimate.

How big is Left on Read?

Estimated owners: ≈ 139k–225k; from 5k 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 Left on Read out and predicted the genre from its 8 similar games. Every figure here, including Left on Read's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 720k–1.0M

best case 6.8M (The Sims™ 4)

The Singleplayer lane

A solid, mid-sized genre: most sell around 874k copies, with a few that break out far above.

A typical game

≈ 874k copies

≈ $2.1M after Steam's cut

from ~17k reviews

Best case

≈ 6.8M copies

The Sims™ 4

from 197k reviews

A breakout hit, far above a typical game.

6 of your 8 games sit in the typical range; 2 are breakout hits far above it.

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with Simulation, priced around $7.
The breakout hits carry Simulation + Life Sim + Character Customization; a typical game here doesn't.
None of the games you compared shipped in the last two years; the newest is from 2020. That says more about your picks than about the market, so add newer similar games to read the timing.
A typical game here lands in Diamond ($1M+ before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

Game	Price	Reviews	Tags	Est. copies	Est. revenue
The Sims™ 4 2020	Est. copies ≈ 5.2M–8.4M 12x vs typical SteamSpy 10M–20M	Est. revenue Free	Free	197k reviews Very Positive	Life SimCharacter Customization +6
Emily is Away 2015	Est. copies ≈ 1.5M–2.4M 1.9x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	32k reviews Very Positive	Free to PlayStory Rich +6
NEKOPARA Vol. 0 2015	Est. copies ≈ 824k–1.3M SteamSpy 500k–1M	Est. revenue $678k–$1.8M net $1.2M–$2.8M gross	$2.99	18k reviews Very Positive	AnimeNudity +6
NEKOPARA Vol. 2 2016	Est. copies ≈ 513k–833k SteamSpy 500k–1M	Est. revenue $1.4M–$3.8M net $2.6M–$5.8M gross	$9.99	13k reviews Overwhelmingly Positive	AnimeSexual Content +6
Garfield Kart 2015	Est. copies ≈ 655k–1.1M SteamSpy 500k–1M	Est. revenue $899k–$2.4M net $1.6M–$3.7M gross	$4.99	14k reviews Very Positive	Cult ClassicCombat Racing +6
SteamVR Invalid Date	Est. copies ≈ 2.0M–3.3M 5.1x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	85k reviews Very Positive	VRSoftware +6
missed messages. 2019	Est. copies ≈ 446k–725k SteamSpy 500k–1M	Est. revenue Free	Free	15k reviews Overwhelmingly Positive	Free to PlayVisual Novel +6
There Is No Game: Wrong Dimension 2020	Est. copies ≈ 677k–1.1M 1.5x vs typical SteamSpy 500k–1M	Est. revenue $2.4M–$6.5M net $4.4M–$10.0M gross	$12.99	26k reviews Overwhelmingly Positive	IndieAdventure +6