How many copies did Viridi sell?

An estimated 446k to 725k copies, based on its 10k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Viridi make?

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

How big is Viridi?

Estimated owners: ≈ 446k–725k; from 10k 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 Viridi out and predicted the genre from its 8 similar games. Every figure here, including Viridi's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 3.5M–4.0M

best case 9.0M (theHunter: Call of the Wild™)

The Simulation lane

A big, proven genre, though hit-driven: most sell around 3.7M copies, while a few break out far above.

A typical game

≈ 3.7M copies

≈ $42.6M after Steam's cut

from ~82k reviews

Best case

≈ 9.0M copies

theHunter: Call of the Wild™ · ≈ $69.7M after Steam's cut

from 200k 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 Sandbox, priced around $20.
The breakout hits carry Life Sim + Character Customization + Romance; 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
House Flipper 2018	Est. copies ≈ 3.4M–5.5M SteamSpy 2M–5M	Est. revenue $23.1M–$62.1M net $42.0M–$95.5M gross	$24.99	110k reviews Very Positive	SimulationDesign & Illustration +6
The Sims™ 4 2020	Est. copies ≈ 5.2M–8.4M 2.4x vs typical SteamSpy 10M–20M	Est. revenue Free	Free	197k reviews Very Positive	Life SimCharacter Customization +6
CarX Drift Racing Online 2017	Est. copies ≈ 3.1M–5.0M SteamSpy 2M–5M	Est. revenue $14.3M–$38.4M net $26.0M–$59.1M gross	$16.99	89k reviews Overwhelmingly Positive	RacingPhysics +6
theHunter: Call of the Wild™ 2017	Est. copies ≈ 6.9M–11.2M 2.4x vs typical SteamSpy 5M–10M	Est. revenue $37.8M–$101.7M net $68.7M–$156.4M gross	$19.99	200k reviews Very Positive	HuntingOpen World +6
Planet Zoo 2019	Est. copies ≈ 2.8M–4.5M SteamSpy 2M–5M	Est. revenue $34.2M–$91.9M net $62.1M–$141.4M gross	$44.99	96k reviews Very Positive	ManagementSimulation +6
Fishing Planet 2017	Est. copies ≈ 2.6M–4.2M SteamSpy 5M–10M	Est. revenue Free	Free	76k reviews Very Positive	FishingFree to Play +6
Planet Coaster 2016	Est. copies ≈ 2.9M–4.7M SteamSpy 2M–5M	Est. revenue $35.6M–$95.7M net $64.7M–$147.3M gross	$44.99	72k reviews Very Positive	SimulationBuilding +6
Farming Simulator 19 2018	Est. copies ≈ 2.3M–3.8M SteamSpy 2M–5M	Est. revenue $11.4M–$30.8M net $20.8M–$47.3M gross	$17.99	76k reviews Very Positive	SimulationFarming Sim +6