In many online games, when players complete a difficult task, sometimes a special reward is given which everyone who completed the task can use. this is usually a mount (method of transportation) or another vanity item (items which don't improve the performance of the character and are mainly used for appearance customization).
When such a reward is given, the most common way of determining who gets the reward is through random numbers. The game usually has a special command which generates a random (likely pseudorandom, not crypto secure random) number between 1 and 100 (sometimes the player can choose another spread, but 100 is the most common). Each player uses this command, all the players can see who rolled what, and the item is awarded to the person who rolls highest. Most games even have a a built-in system where players just press a button and once everyone pressed their button, the game does the rest automatically.
Sometimes, some players generate the same high number and noone beats them. this is usually resolved by those players regenerating their numbers, until there is a unique highest number.
My question is the following: Assume a random number generator which can generate any number between 1 and 100 with the same probability. Assume that you have a group of 25 players who each generate 1 number with such a random number generator (each with their own seed). You'll have 25 numbers between 1 and 100, with no limitations on how many players roll a specific numbder and no relation between the numbers. What is the chance that the highest generated number is generated by more than 1 player? In other words, what is the likelihood of a tie?