Try to answer a simple question — which online game has the most players — and you will find that the industry has quietly made it unanswerable.

Here are four real, current, defensible figures. Roblox: around 380 million monthly active users, with roughly 144 million people opening it daily. Fortnite: more than 650 million registered accounts. Counter-Strike 2: a peak of about 1.86 million simultaneous players on Steam in February 2026. Minecraft: more than 300 million copies sold and around 212 million monthly players.

Not one of those numbers can be compared to another. They do not measure the same thing, they are not collected the same way, and in most cases the only source is the company that benefits from the number being impressive.

The four currencies

Registered accounts is the softest metric in the business. It counts every account ever created, including the ones abandoned after one session and the alts. It only goes up. When a publisher leads with this figure, it is usually because the others are not moving.

Monthly active users is better but elastic — 'active' can mean a single launch of the app in thirty days. Daily actives are considerably more honest, which is why fewer companies publish them.

Peak concurrent players is the hardest number to fudge, which is why it is mostly available for games on Steam, where Valve publishes it whether the developer likes it or not. It is also the least flattering, because it captures one moment rather than a month.

And then there is revenue, which measures something else entirely and is often what a publisher means when it says a game is doing well.

Why it matters to you

Because player counts are how most people decide whether a game is worth installing, and a healthy population is a genuine quality factor — it determines queue times, matchmaking quality and whether the game will still exist in a year. Being unable to compare games on that axis is a real problem for players, not just for journalists.

The practical advice: for anything on Steam, look at SteamDB's concurrent history rather than the publisher's press release, and look at the trend line rather than the peak. For console and mobile, treat every published figure as marketing until a regulatory filing says otherwise. Public companies do have to tell the truth to investors, and Roblox's quarterly reports are considerably more informative than its blog posts.

Across this site we quote whichever figure is available, name the metric, and name who reported it. It is a lower bar than it should be. Almost nobody clears it.