Between Waters (Popularity: )

Daily problems and solutions available with or without interactive browser-based solver.

CryptoChallenge (Popularity: )

A series of puzzles to solve. Has an encrypted sentence for each level. When it receives the decrypted answer it goes to another page with ...

RuneQuest Challenge (Popularity: )

A multi-layered cipher puzzle using lore themes with cash prizes for various checkpoints and the final solution. In order to be eligible for the prizes, ...