How many copies did DDNet sell?

An estimated 1.2M to 2.0M copies, based on its 46k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did DDNet make?

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

How big is DDNet?

Estimated owners: ≈ 1.2M–2.0M; from 46k 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 DDNet out and predicted the genre from its 8 similar games. Every figure here, including DDNet's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 27.2M–48.9M

best case 123.2M (PUBG: BATTLEGROUNDS)

The Multiplayer lane

A big, proven genre, though hit-driven: most sell around 35.3M copies, while a few break out far above.

A typical game

≈ 35.3M copies

≈ $56.7M after Steam's cut

from ~669k reviews

Best case

≈ 123.2M copies

PUBG: BATTLEGROUNDS

from 2.7M reviews

A breakout hit, far above a typical game.

7 of your 8 games sit in the typical range; 1 is a breakout hit 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 Survival + Shooter, priced around $5.
The breakout hits carry PvP + Survival + Shooter; a typical game here doesn't.
The games you compared span 2007 to 2020, a lane with a long track record.
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
War Thunder 2013	Est. copies ≈ 39.8M–64.7M SteamSpy 20M–50M	Est. revenue Free	Free	765k reviews Mostly Positive	Free to PlaySimulation +6
Warframe 2013	Est. copies ≈ 34.8M–56.5M SteamSpy 20M–50M	Est. revenue Free	Free	669k reviews Very Positive	Free to PlayAction RPG +6
Fall Guys 2020	Est. copies ≈ 12.4M–20.1M SteamSpy 20M–50M	Est. revenue Free	Free	469k reviews Very Positive	MultiplayerParty Game +6
Destiny 2 2019	Est. copies ≈ 19.0M–30.8M SteamSpy 20M–50M	Est. revenue Free	Free	659k reviews Mostly Positive	Free to PlayOpen World +6
PUBG: BATTLEGROUNDS 2017	Est. copies ≈ 93.9M–152.6M 4.1x vs typical SteamSpy 100M–200M	Est. revenue Free	Free	2.7M reviews Mixed	SurvivalShooter +6
Team Fortress 2 2007	Est. copies ≈ 64.5M–104.8M 1.9x vs typical SteamSpy 50M–100M	Est. revenue Free	Free	1.2M reviews Very Positive	Free to PlayHero Shooter +6
Rocket League® 2015	Est. copies ≈ 26.9M–43.7M SteamSpy 10M–20M	Est. revenue Free	Free	580k reviews Very Positive	MultiplayerFootball (Soccer) +6
Among Us 2018	Est. copies ≈ 22.4M–36.4M SteamSpy 20M–50M	Est. revenue $30.8M–$82.7M net $55.9M–$127.2M gross	$4.99	737k reviews Very Positive	MultiplayerSocial Deduction +6