ITEN

Steam catalog · concentration

The top 10 games hold 43.1% of the catalog's players

What share of the players online goes to the top 10 games, day by day, and the HHI index.

From October 17, 2026 to November 8, 202617 daily readings309 games on November 8

Calculation base

Only the Steam games tracked by Statcade (311 in the catalog), not all of Steam. Reading at around 05:00 UTC.

Top 10 share43.1%
HHI (0-10,000 scale)284
Equivalent number of games35.2

Reading of November 8, 2026: 5,705,866 players across 309 games. HHI below 1,000.

Top 10 share, day by day

40.3%49.6%October 17November 8

HHI, day by day

248497October 17November 8

Vertical axis narrowed to the recorded values: the full scale runs from 0 to 10,000.

Top 10 on November 8, 2026

#GamePlayersShare
1Counter-Strike 2536,5399.4%
2Dota 2435,7777.6%
3Phantom Blade Zero345,0616.0%
4PUBG: BATTLEGROUNDS300,0715.3%
5Call of Duty®179,1873.1%
6Bongo Cat168,3122.9%
7AION 2137,5132.4%
8Probably Stolen - Cyberpunk Shopkeeper Sim135,1672.4%
9Apex Legends™121,1662.1%
10Cyberpunk 2077102,5781.8%

All days

DayGamesPlayersTop 10HHIEquivalent
November 8, 2026Nov 83095,705,86643.1%28435.2
November 7, 2026Nov 73085,407,08644.1%29933.4
November 6, 2026Nov 63084,230,33944.5%30432.8
November 5, 2026Nov 53073,950,25943.4%28934.6
November 4, 2026Nov 43074,109,06743.7%31232.1
November 3, 2026Nov 33074,417,81943.3%28934.6
November 2, 2026Nov 23084,534,04244.2%30432.9
November 1, 2026Nov 13075,532,69443.9%31931.3
October 31, 2026Oct 313085,480,51143.7%30932.4
October 30, 2026Oct 303064,324,08645.2%32530.8
October 29, 2026Oct 293063,895,73543.4%33529.9
October 28, 2026Oct 283064,013,93045.8%38126.2
October 27, 2026Oct 273054,150,53048.3%46121.7
October 26, 2026Oct 263044,196,90547.6%42823.4
October 25, 2026Oct 253045,631,39143.9%35028.6
October 18, 2026Oct 183035,633,84341.7%31631.6
October 17, 2026Oct 173045,323,77241.8%31431.8

Days without a reading (gaps in the chart, never estimated): October 19 – October 24.

The number of games changes from one day to the next (games added to the catalog later, missing or zero readings): this also moves the shares a little. Games removed from the catalog do not count on any day.

Method

Base: only the Steam games in the Statcade catalog, with the daily reading at around 05:00 UTC (players online at that moment, Steam Web API). It is not all of Steam: games outside the catalog are not included and the Steam-wide player total is not part of the calculation. Shares are shares of the tracked catalog.

The catalog is today's, and it is used to recalculate past days too: a game removed from the catalog disappears from every day, including days already published, which can therefore change; a game added later counts only from the days it has a reading.

For each day: a game's share = its players divided by the total of the games in the base, as a percentage. Top 10 share = sum of the 10 largest shares. HHI (Herfindahl-Hirschman index) = sum of the squared shares of all games, on a scale from 0 to 10,000: 10,000 means a single game with all the players, low values mean players spread over many games. Equivalent number of games = 10,000 divided by the HHI.

A game with 0 players or no reading does not count. A day without a reading stays a gap in the chart, with no estimate. A day with fewer than 10 games, or with less than 80% of the games of a typical day (partial reading), is not calculated.

For comparison, the 2023 Merger Guidelines of the US Department of Justice and FTC treat a market with an HHI above 1,800 as highly concentrated and between 1,000 and 1,800 as moderately concentrated. There the shares belong to companies in a whole market; here they belong to single games in a catalog: the reference only helps to read the scale.

It is a snapshot at around 05:00 UTC, not the day's playtime: at that hour it is afternoon in Asia and early morning in Europe. 05:00 UTC is 7:00 in Italy in summer time and 6:00 in winter time.