Looking for logging into the Unity3d site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Unity3d site. After that you can login as usual with your login credentials.
https://unity3d.com/de
https://id.unity.com/
https://www.youtube.com/watch?v=DsBgpH1xsbw
https://www.youtube.com/watch?v=5l02kT2o5mg
https://www.youtube.com/watch?v=vFs0_skd0E4
https://www.youtube.com/watch?v=h9Fv9b39_tw
https://www.youtube.com/watch?v=cIcCl4Ds9bI
https://www.codeproject.com/Questions/1236023/UNITY-D-login-issue-when-connected-to-a-mysql-DB-U
http://support.ctalyst.com/article/setting-up-a-user-registration-and-login-system-with-unity-3d-and-the-ctalyst-plugin/
https://stackoverflow.com/questions/52447473/offline-login-unity-3d-and-php-laravel
https://www.reddit.com/r/Unity3D/comments/6ox6j0/avoiding_popup_w_unity_fb_sdk_login/
https://developers.facebook.com/docs/unity/examples/?locale=de_DE
https://xinyustudio.wordpress.com/2017/01/22/using-firebase-in-unity3d-tutorial-2-authorization-and-user-login-example-with-user-name-and-password/