duke3d-shareware   Version 2-14-2015   Release 9  10F/ 156M (c) RTCM Corvin

Shareware versions of Duke3D - Released by their Authors or Distributors.

Get Official  Shareware at 3DRealms Duke3D - All Duke3d 3DR installers done by Joe Siegler

G.co Verify Account Fixed Online

Google sends a 6-digit code to the mobile number linked to your account.

A notification appears on a phone where you are already logged in. You simply tap "Yes, it’s me." g.co verify account

If you have 2-Step Verification (2SV) enabled, you can enter one of your 8-digit emergency codes. Google sends a 6-digit code to the mobile

A third-party app is requesting deep access to your Google data. How the Verification Process Works A third-party app is requesting deep access to

Be wary if you receive a verification prompt when you aren't actively trying to log in. This could mean someone else has your password and is trying to bypass your security. How to Proactively Secure Your Account

Understanding "g.co/verifyaccount": How to Securely Verify Your Google Identity

A verification link or code is sent to your secondary email address. Security Checklist: Avoiding Phishing Scams