How many copies did Blackjack Championship sell?

43k to 71k copies, based on its 2k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Blackjack Championship make?

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

How big is Blackjack Championship?

Estimated owners: ≈ 43k–71k; from 2k reviews (Mixed)

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 Blackjack Championship out and predicted the genre from its 8 similar games. Every figure here, including Blackjack Championship's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 263k–614k

best case 609k (NBA 2K18)

Games like Blackjack Championship

The middle of these games

≈ 263k–614k copies

from ~8k reviews

Only the top fifth of 2019’s Steam releases earned about $34k gross, so plan for that or less.

6 of your 8 similar games are hits.

Best case: NBA 2K18 at ≈ 464k–755k copies.

The genre you'd be entering

Your set: Your set clusters on Gambling (8 of 8) and Card Game (7 of 8).
The winners: Winners here lead with Sports + Basketball.
The era: The games you compared span 2010 to 2020, 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 79 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
NBA 2K18 unreleased	Est. copies ≈ 464k–755k 2.3x vs typical SteamSpy 1M–2M	Est. revenue Free	Free	19k reviews Mostly Negative	SportsBasketball
Poker Club 2020	Est. copies ≈ 14k–22k too small to compare SteamSpy 20k–50k	Est. revenue $74k–$200k after Steam's cut $135k–$307k before the cut	$19.99	545 reviews Mixed	SimulationSports
Poker Night 2 2013	Est. copies ≈ 469k–762k SteamSpy 1M–2M	Est. revenue Free	Free	7k reviews Very Positive	Card GameComedy
Poker Night at the Inventory (2010 Original Version) 2010	Est. copies ≈ 612k–995k SteamSpy 1M–2M	Est. revenue Free	Free	10k reviews Very Positive	Card GameCasual
Poker Championship 2019	Est. copies ≈ 82k–134k SteamSpy 200k–500k	Est. revenue Free	Free	3k reviews Mostly Positive	Free to PlayIndie
Prominence Poker 2016	Est. copies ≈ 357k–580k SteamSpy 500k–1M	Est. revenue Free	Free	9k reviews Very Positive	Card GameFree to Play
HD Poker: Texas Hold'em 2018	Est. copies ≈ 148k–240k SteamSpy 500k–1M	Est. revenue Free	Free	5k reviews Mostly Positive	Free to PlayStrategy
Governor of Poker 2 - Premium Edition unreleased	Est. copies ≈ 8k–12k too small to compare SteamSpy under 20k	Est. revenue Free	Free	304 reviews Very Positive	CasualSimulation