osu.ppy.sh
May 30, 2026
Leaked source code for osu!Bancho, the backend server software powering the osu! rhythm game's multiplayer and chat infrastructure. The archive contains C# source files implementing the Bancho server protocol, IRC client handling, BanchoBot logic, MySQL database interactions, user authentication (including MD5 and BCrypt password verification), multiplayer lobby management, and GeoIP lookups. This is proprietary server-side code for the osu! game by ppy, not user data.
Source files
Expand any file to inspect its column headers and the LLM's field-mapping reasoning, recorded during ingestion.
osu-bancho-master__osu_Bancho__Bancho.cs.csv0 rows
osu-bancho-master__osu_Bancho__Clients__BotBancho.cs.csv2 rows
File structure
Notes: This is C# source code from the osu!Bancho server backend, not a data breach with PII records. The file contains function definitions, class implementations, and logic for handling bot commands, channel moderation, and multiplayer management. No structured user data or PII columns present. This is proprietary source code, not user/customer data.