The Math Behind Everything All games

The celebrity lobby

 

 

Matches

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Lobby-mates

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Celebrities playing

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Have you been in a lobby with a celebrity?

About 110 million people play Fortnite every month, 99 of them in every match with you. If the most famous people alive play as much as everyone else, what are the odds one of them has been in your lobby?

How it works
  1. A celebrity here is one of the most famous people alive. The top 5,000 is about Josh Peck-level fame and up.
  2. Celebrities are assumed to play Fortnite as often as everyone else, about 1.3% of the world, and to land in lobbies at random.
  3. Set how much you play and how many people count as celebrities. The odds update as you type. Press play to run your matches month by month and see if a celebrity turns up.

8.5 hours a week is the average gamer in a 2021 survey. A match, with the lobby, takes about 20 minutes.

Chance of a celebrity

Lobby-mates

How the math works

Why ?

      About 110 million people play Fortnite each month, a third-party tracker's estimate (Epic Games doesn't publish one), out of about 8.2 billion people on Earth. The average gamer plays 8 hours 27 minutes a week (Limelight Networks, State of Online Gaming 2021). 20 minutes a match, with the lobby, is an estimate, as is the size of the celebrity list. The math assumes celebrities play as much as everyone else, every match is a 100-player lobby, and every lobby-mate is someone new. Portions of the materials used are trademarks and/or copyrighted works of Epic Games, Inc. All rights reserved by Epic. This material is not official and is not endorsed by Epic.

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      How the celebrity odds add up

      Every Fortnite battle royale match drops you onto an island with 99 other players. You see their usernames, not their faces, and plenty of people play under names that give nothing away. So across all the matches you've played, what are the odds that one of those strangers was a celebrity? You can get a real estimate from a few numbers and one formula.

      Who counts as a celebrity?

      There's no official count of famous people. Rough estimates put the number of internationally famous people somewhere between 1,000 and 10,000, so this page takes the middle and counts the top 5,000 most famous people alive. Asked who sits around number 5,000, an AI chatbot named Josh Peck. That's the bar: anyone as famous as Josh Peck or more.

      Where you draw that line is a judgment call, and it moves the answer a lot. The table in the math section above shows the odds if you count only the top 100, or as many as 80,000.

      How many celebrities play?

      About 110 million people play Fortnite every month. Epic Games doesn't publish a figure, so that one comes from a third-party tracker. With about 8.2 billion people on Earth, Fortnite players are about 1.3% of everyone.

      Nobody knows how much celebrities play, so the simplest assumption is that they play at the same rate as everyone else. Then about 67 of the 5,000 are playing Fortnite in a given month.

      5,000 × 1.3% ≈ 67 celebrities playing

      The chance for one lobby-mate

      Pick any one player in your lobby. They're one of 110 million monthly players, and 67 of those are celebrities. So the chance this one person is a celebrity is 67 in 110 million, or about 1 in 1.6 million.

      There's a shortcut hiding in that step. The 1.3% cancels out. If celebrities play as much as everyone else, a random player is a celebrity as often as a random person on Earth is: 5,000 out of 8.2 billion, the same 1 in 1.6 million. The size of the celebrity list matters far more than the player count.

      Everyone you meet in a year

      One in 1.6 million is a long shot, but you meet a lot of players. A 2021 survey of gamers found the average one plays about 8.5 hours a week. If all of that goes to Fortnite, and a match takes about 20 minutes including the lobby, that's about 110 matches a month. Each match brings 99 other people, so that's about 11,000 lobby-mates a month. The math assumes every one of them is someone new.

      To get the chance of at least one celebrity, it's easier to find the chance of none and subtract it from 1. Each lobby-mate misses with probability 1 − 1/1,640,000. For all of them to miss, you multiply that by itself once per lobby-mate.

      1 − (1 − 1/1,640,000)11,000 ≈ 1 in 150

      That's one month. Over a year you play about 1,300 matches and meet about 130,000 lobby-mates. The chance that none of them was a celebrity falls to about 92%, which leaves about a 1 in 13 chance you've shared a lobby with someone at least as famous as Josh Peck. Keep that pace for five years and it's about 1 in 3.

      Why it's better than it sounds

      Your gut hears "1 in 1.6 million" and stops there. But you don't take that chance once. You take it for every stranger who drops in with you, and over a year that's six figures of strangers. A tiny chance repeated that many times stops being tiny. If you play as much as the average gamer, there's a real chance it has already happened to you, and people are probably getting eliminated by Josh Peck without ever knowing it.

      The answer rests on a few assumptions: celebrities play as much as everyone else, every match is a full 100-player lobby, and 20 minutes a match is an estimate. Change any of them and the odds change with it.

      The calculator at the top of this page runs the same model with your numbers. Enter how many hours a week you play, how long your matches last, how many months you've played and how big you think the celebrity list is. Then press play to run your months one at a time and see whether a celebrity turns up.

      More Fortnite math: what are your odds of finding the Fortnite pirate token?

      For education and entertainment. Found a mistake in the math? Email me and I'll fix it.