Ranking Systems - Elo, TrueSkill and Your Own

Explore the mathematics behind popular ranking systems like Elo and TrueSkill, and learn how to develop your own custom ranking system in this 38-minute GDC talk from 2017. Delve into topics such as Jumpcraft, TrueSkill implementation, complexity considerations, score flexion, handling new players, time decay, and win ratio calculations. Examine the widespread application of ranking systems, their appropriateness in various contexts, and specific challenges in online gaming environments. Gain insights on combating cheaters, managing top players, balancing maps versus players, and adapting to game balance changes. Acquire valuable knowledge to create or improve ranking systems for your own projects.

Intro
Jumpcraft
TrueSkill
TrueSkill Example
TrueSkill Comments
Complexity
Complexity Example
Flexion of Scores
New Players
Time Decay
Margin
Simplicity
Win Ratio
Ranking is Everywhere
Is it Appropriate
Online Games
Fighting Cheaters
Top Players
Maps vs Players
Balance Changes