BrainOff

Many of us (We want to believe) in childhood wanted to be agents and work with secret codes, but, unfortunately, not all dreams come true. However, we know how to fix it! In the game BrainOff you will be presented with various ciphers and codes that you can solve. Moreover, you won't have to search for their device on the Internet, because the game has an Encyclopedia, which explains in accessible language how each cipher works!

P.S. The game has 10 levels, not 9...