How many copies did Cartridge Monsters sell?

620 to 1k copies, based on its 25 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Cartridge Monsters make?

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

How big is Cartridge Monsters?

Estimated owners: ≈ 620–1k; from 25 reviews (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 Cartridge Monsters out and predicted the genre from its 8 similar games. Every figure here, including Cartridge Monsters's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 142k–386k

best case 1.3M (Temtem)

Games like Cartridge Monsters

The middle of these games

≈ 142k–386k copies

≈ $1.2M–$3.8M after Steam's cut

from ~8k 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: Temtem at ≈ 975k–1.6M copies, ≈ $12.1M–$32.4M 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 2k reviews in their first month; the spread ran 673 to 33k.

The genre you'd be entering

Your set: Your set clusters on Creature Collector (8 of 8) and Turn-Based Combat (7 of 8).
The winners: Winners here lead with Co-op + Creature Collector, priced around $45. The breakout hits carry Multiplayer + Story Rich + PvE; a typical game here doesn't.
The era: The games you compared span 2017 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 43 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
Temtem 2022	Est. copies ≈ 975k–1.6M 4.9x vs typical SteamSpy 500k–1M	Est. revenue $12.1M–$32.4M after Steam's cut $21.9M–$49.9M before the cut	$44.99	39k reviews Very Positive	Co-opMultiplayer
Coromon 2022	Est. copies ≈ 199k–324k SteamSpy 500k–1M	Est. revenue $1.1M–$2.9M after Steam's cut $2.0M–$4.5M before the cut	$19.99	8k reviews Very Positive	Creature CollectorExploration
Siralim Ultimate 2021	Est. copies ≈ 63k–102k SteamSpy 200k–500k	Est. revenue $346k–$930k after Steam's cut $629k–$1.4M before the cut	$19.99	3k reviews Very Positive	CollectathonCreature Collector
Monster Sanctuary 2020	Est. copies ≈ 313k–509k 1.6x vs typical SteamSpy 500k–1M	Est. revenue $2.6M–$6.9M after Steam's cut $4.7M–$10.7M before the cut	$29.99	13k reviews Very Positive	Creature CollectorPixel Graphics
Digimon Story Cyber Sleuth: Complete Edition 2019	Est. copies ≈ 379k–616k 1.6x vs typical SteamSpy 200k–500k	Est. revenue $5.2M–$14.0M after Steam's cut $9.5M–$21.6M before the cut	$49.99	13k reviews Very Positive	Creature CollectorJRPG
WORLD OF FINAL FANTASY® 2017	Est. copies ≈ 116k–188k SteamSpy 100k–200k	Est. revenue $795k–$2.1M after Steam's cut $1.4M–$3.3M before the cut	$24.99	3k reviews Mostly Positive	RPGJRPG
Nexomon: Extinction 2020	Est. copies ≈ 100k–163k SteamSpy 200k–500k	Est. revenue $551k–$1.5M after Steam's cut $1.0M–$2.3M before the cut	$19.99	4k reviews Very Positive	Creature CollectorTurn-Based Combat
Cassette Beasts 2023	Est. copies ≈ 275k–446k SteamSpy under 20k	Est. revenue $1.5M–$4.1M after Steam's cut $2.7M–$6.2M before the cut	$19.99	11k reviews Very Positive	ControllerComedy