How many copies did Card Blitz: WWII sell?

2k to 4k copies, based on its 92 Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Card Blitz: WWII make?

Card Blitz: WWII is free to play, so there is no copy-sales revenue to estimate.

How big is Card Blitz: WWII?

Estimated owners: ≈ 2k–4k; from 92 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 Card Blitz: WWII out and predicted the genre from its 8 similar games. Every figure here, including Card Blitz: WWII's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 7.2M–17.4M

best case 64.7M (War Thunder)

Games like Card Blitz: WWII

The middle of these games

≈ 7.2M–17.4M copies

≈ $395.6M after Steam's cut

from ~155k 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: War Thunder at ≈ 49.3M–80.1M copies.

The genre you'd be entering

Your set: Your set clusters on World War II (6 of 8) and War (4 of 8).
The winners: Winners here lead with Simulation + Vehicular Combat.
The era: The games you compared span 2013 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
Hearts of Iron IV 2016	Est. copies ≈ 15.6M–25.4M 2.4x vs typical SteamSpy 5M–10M	Est. revenue $214.5M–$576.7M after Steam's cut $390.0M–$887.2M before the cut	$49.99	375k reviews Very Positive	StrategyWorld War II
Heroes & Generals 2016	Est. copies ≈ 5.9M–9.6M SteamSpy 10M–20M	Est. revenue Free	Free	142k reviews Mixed	Free to PlayWorld War II
World of Tanks Blitz 2016	Est. copies ≈ 6.4M–10.4M SteamSpy 10M–20M	Est. revenue Free	Free	153k reviews Mostly Positive	TanksFree to Play
War Thunder 2013	Est. copies ≈ 49.3M–80.1M 5.0x vs typical SteamSpy 20M–50M	Est. revenue Free	Free	780k reviews Mostly Positive	Free to PlaySimulation
KARDS - The WW2 Card Game 2020	Est. copies ≈ 1.3M–2.1M SteamSpy 2M–5M	Est. revenue Free	Free	51k reviews Mixed	Free to PlayCard Game
World of Warships 2017	Est. copies ≈ 5.4M–8.7M SteamSpy 20M–50M	Est. revenue Free	Free	156k reviews Mostly Positive	Free to PlayNaval Combat
WWII TCG - World War 2: The Card Game 2019	Est. copies ≈ 11k–17k too small to compare SteamSpy 100k–200k	Est. revenue Free	Free	372 reviews Mixed	Free to PlayStrategy
HoCWar 2016	Est. copies ≈ 6k–10k too small to compare SteamSpy under 20k	Est. revenue Free	Free	142 reviews Mixed	StrategyFree to Play