Games are played all night. This one online, but there, board. Code is history
There is a code hidden somewhere in the Kalahari.
This clue pointed us to the game room in the Kalahari. There was a QR code on the walls that takes you to Bill Sempf’s User Talk page on the OWASP website. One thing that stood out was that the page was recently modified. Looking at the history, there is a string that was removed:
The string stood out as a base64 encoded string. Decoding that string yields our flag: