: The primary purpose is to enable online multiplayer (typically via Steam's "Spacewar" developer testing app) for games that have been cracked.

: These files are often hosted on third-party modding or crack sites (like online-fix.me or Modsbase ). Because they contain modified .dll or .exe files, they frequently trigger false positives in antivirus software.

: Often includes support for the Steam Overlay in-game, which is necessary for sending and receiving multiplayer invites. Important Considerations