How many copies did World War 3 sell?

1.3M to 2.1M copies, based on its 55k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did World War 3 make?

World War 3 is free to play, so there is no copy-sales revenue to estimate.

How big is World War 3?

Estimated owners: ≈ 1.3M–2.1M; from 55k 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 World War 3 out and predicted the genre from its 8 similar games. Every figure here, including World War 3's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 31.1M–49.1M

best case 123.4M (PUBG: BATTLEGROUNDS)

The FPS genre

All 8 of your similar games are hits. A big, proven genre for a game like yours.

A hit here: 1,000+ reviews, roughly $150k+ before Steam's cut (a standard indie benchmark).

A typical game

≈ 31.1M–49.1M copies

≈ $77.2M after Steam's cut

from ~768k reviews

Best case

≈ 94.0M–152.8M copies

PUBG: BATTLEGROUNDS

A breakout hit, far above a typical game.

The genre you'd be entering

Your set: Your set clusters on FPS (4 of 8) and Shooter (3 of 8).
The winners: Winners here lead with Survival + Shooter, priced around $5. The breakout hits carry Survival + Battle Royale + PvP; a typical game here doesn't.
The era: The games you compared span 2007 to 2020, a genre with a long track record.

Copies and revenue are rough lifetime estimates from the review count.

Similar games

Game	Est. copies	Est. revenue	Price	Reviews	Tags
Team Fortress 2 2007	Est. copies ≈ 64.6M–105.0M 1.6x vs typical SteamSpy 50M–100M	Est. revenue Free	Free	1.2M reviews Very Positive	Free to PlayHero Shooter
Apex Legends™ 2020	Est. copies ≈ 27.9M–45.4M SteamSpy 100M–200M	Est. revenue Free	Free	1.1M reviews Mixed	Free to PlayBattle Royale
Unturned 2017	Est. copies ≈ 19.4M–31.5M SteamSpy 50M–100M	Est. revenue Free	Free	564k reviews Very Positive	Free to PlaySurvival
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 94.0M–152.8M 3.6x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter
Warframe 2013	Est. copies ≈ 34.9M–56.7M SteamSpy 20M–50M	Est. revenue Free	Free	671k reviews Very Positive	Free to PlayAction RPG
Destiny 2 2019	Est. copies ≈ 19.0M–30.9M SteamSpy 20M–50M	Est. revenue Free	Free	660k reviews Mostly Positive	Free to PlayOpen World
Wallpaper Engine 2018	Est. copies ≈ 30.5M–49.6M SteamSpy 20M–50M	Est. revenue $41.9M–$112.5M after Steam's cut $76.1M–$173.1M before the cut	$4.99	1.0M reviews Overwhelmingly Positive	MatureUtilities
War Thunder 2013	Est. copies ≈ 40.0M–64.9M SteamSpy 20M–50M	Est. revenue Free	Free	768k reviews Mostly Positive	Free to PlaySimulation