Newgrounds Authentication pluggin. Port from rex_ngio_authentication now with support for C2 and C3 runtimes.
Hey! this addon is deprecated and I won't be updated anymore due to it uses a deprecated NGAPI. I´ve created a brand new addon over SDK v2 that supports worker and advanced minification.
You can download it for free at my website. It's MIT licensed (suitable for all uses, includying commercial): store.pixelperfectstudio.mx/product/newgrounds-io