Quadrant-OTP is an experimental server suite for Panda3D client applications, with inspiration from Disney Interactive Media Group's now-defunct Online Theme Park (OTP) server suite project, used in-house from 2001 - 2013.
You must have the latest build of the Panda3D SDK installed, of which can be found here.
Any contributions are more than welcomed! Feel free to fork the repository, make some changes and submit a Pull Request. I'll be sure to review any PRs that are submitted to the repository.