A tool or resource designed to estimate a player’s performance rating in the rhythm game osu!, reflecting adjustments made to the game’s performance point (pp) calculation system. Such a tool allows players to input their scores on beatmaps and receive an estimated performance point value based on a specific ruleset or formula implemented in the game. These resources can exist as websites, standalone programs, or even integrated features within community-created utilities.
The value stems from its ability to provide players with insights into how changes to the game’s scoring mechanics affect their ranking and progression. Understanding the impact of modifications to the point system facilitates informed decision-making regarding which beatmaps to attempt and what aspects of gameplay to focus on for improvement. The historical context often involves periods following official updates to the game’s scoring algorithm, where the community seeks to understand and adapt to the new system.