How much revenue did Summon make?

An estimated 23k to 62k net after Steam's roughly 30% cut, derived from the copies estimate and its price.

How many copies did Summon sell?

Q: How many copies did Summon sell?

An estimated 84k to 137k copies, based on its 4k Steam reviews. This is a labeled estimate from the review count, not exact sales.

Estimated copies sold: ≈ 84k–137k; $23k–$62k net $42k–$95k gross; from 4k 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 Summon out and predicted the genre from its 8 similar games. Every figure here, including Summon's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 11.9M–18.1M

best case 123.2M (PUBG: BATTLEGROUNDS)

The Multiplayer lane

A big, proven genre, though hit-driven: most sell around 13.0M copies, while a few break out far above.

A typical game

≈ 13.0M copies

≈ $351.0M after Steam's cut

from ~248k reviews

Best case

≈ 123.2M copies

PUBG: BATTLEGROUNDS

from 2.7M 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 Mature + Utilities, priced around $5.
The breakout hits carry Mature + Utilities + Software; a typical game here doesn't.
None of the games you compared shipped in the last two years; the newest is from 2018. 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
Call of Duty®: Black Ops III 2015	Est. copies ≈ 10.7M–17.4M SteamSpy 5M–10M	Est. revenue $176.5M–$474.6M net $320.9M–$730.1M gross	$59.99	231k reviews Very Positive	MultiplayerZombies +6
Hearts of Iron IV 2016	Est. copies ≈ 14.8M–24.1M SteamSpy 5M–10M	Est. revenue $204.1M–$548.7M net $371.1M–$844.2M gross	$49.99	371k reviews Very Positive	StrategyWorld War II +6
Human Fall Flat 2016	Est. copies ≈ 9.0M–14.6M SteamSpy 10M–20M	Est. revenue $49.5M–$133.2M net $90.1M–$204.9M gross	$19.99	225k reviews Very Positive	Co-opFunny +6
No Man's Sky 2016	Est. copies ≈ 16.4M–26.7M 1.7x vs typical SteamSpy 5M–10M	Est. revenue $271.3M–$729.5M net $493.4M–$1122.4M gross	$59.99	411k reviews Very Positive	Open WorldOpen World Survival Craft +6
SCP: Secret Laboratory 2017	Est. copies ≈ 8.0M–13.0M SteamSpy 5M–10M	Est. revenue Free	Free	232k reviews Very Positive	Free to PlayMultiplayer +6
VRChat 2017	Est. copies ≈ 9.1M–14.8M SteamSpy 20M–50M	Est. revenue Free	Free	265k reviews Mostly Positive	VRFree to Play +6
Wallpaper Engine 2018	Est. copies ≈ 30.4M–49.4M 4.0x vs typical SteamSpy 20M–50M	Est. revenue $41.7M–$112.1M net $75.8M–$172.5M gross	$4.99	1000k reviews Overwhelmingly Positive	MatureUtilities +6
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 93.9M–152.6M 11x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter +6