No Man’s Sky Developer Hello Games has begun sending mysterious packages containing cassette tapes to some of their Reddit moderators.
Each of the tapes currently received is marked as a number out of 16, and so far seven individuals have come forward claiming to own a tape, with five already having uploaded their audio.
The Reddit community is working together to decipher the information in this ARG, and so far has produced that every tape features the word ‘Portal’. This was apparent after spectrographs of the recording revealed a number sequence which when run through a common letter substitution cipher ROT13 and converted from HEX to ASCII revealed the word.
Source: IGN PC Articles
GameUP24 