Base Encryption

There are many ways how you can write numbers. For everyday life we usually only use base10 (decimal), but in ARG's it is common to use other numeral systems to hide clues. The most common ones are binary (base2), octal (base8), duo-decimal (base12), hexadecimal (base16), and base64.

Decryption
Luckily, decryption of them is as easy as copy-pasting them in a right website, such like this or this. Also, note that sometimes letters can be written as numbers using ASCII values or their order in the English alphabet. For example, "Hello" can be written as "72 101 108 108 111", or as "8 5 12 12 15". These techniques can be distinguished by the fact that letters A-Z in ASCII maps to 65-90, and lowercase a-z to 97-122, and the other one goes from 1-26.

Similar encryptions
Morse code is also commonly used as encryption method, sometimes with modifications, such as replacing dots with zeroes and dashes with ones, creating a binary-looking code. Websites like this offers easy to use Morse decryption tools.

Ciphers like Baconian or Polybius square might be confused with base encryption.