What difficulties does Cyber City include?

Choose Very Easy, Easy, Medium, Hard, or Hardest. Each level uses its own clue and difficulty profile.

Do I need an account for Cyber City?

No. The game works without an account and saves the current puzzle locally on this device.

Strategist

German Whispers Sudoku

Adjacent digits on each neon line must differ by at least 5.

Puzzle setup

Select a difficulty to prepare your Cyber City adventure.

How this world works

Follow neon lines through the grid. Adjacent digits on each neon line must differ by at least 5.