Halloween at the Portal. The Hollow, a haunted cipher maze, is free to play until 2 November. Enter The Hollow

๐Ÿ“œ Briefing
You've intercepted a fragmented transmission from the Architect's hidden server. The message contains coordinates to a backdoor in the Matrix, but it's been encrypted using a cascading security protocol. Intelligence suggests the Architect uses old-world cryptography methods, believing them to be beneath the notice of modern AI sentinels.

Each layer of encryption feeds into the nextโ€”crack one cipher, and its answer becomes the key to unlock the following layer. The agents are already tracing your signal. You have limited time to decrypt all three layers and discover the final location before they zero in on your position.

Remember: In the Matrix, everything is connected. The answer you seek always leads to the next question.
  1. 1 The Outer Shell - Caesar's Gate
  2. 2 The Middle Layer - Vigenere's Maze ๐Ÿ”’ opens with stage 1's answer
  3. 3 The Core - Base64 Extraction ๐Ÿ”’ opens with stage 2's answer

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