PlugData is a plugin and standalone wrapper around Pure Data. It aims to offer the same features as Pure Data, but in a DAW. It also features an updated GUI that will make patching more comfortable. PlugData also ships with a large library of extra objects.
Pure Data is an interactive programming environment that allows you to processes, synthesise and modify real-time audio signals. It also has a system for control messages. For more info on Pure Data see: https://puredata.info