Difficult but nice game some people with lower levels of education i.e. people in middle school would have no chance of figuring this out unless of course they are mathematical/logical geniuses fortunately for me, I am a, in some terms, an arithmetic genius (both of my parents were mathematicians and forced me to study shit like this) . it requires more thought than gameplay which in many ways is good, but most people are going to hate on your skills because this is not fun to play at all
like i said i can really get behind this kind of game, due to my previous appreciation of this sort of problem solving, but the main reason people will hate this game is the fact that i have prior knowledge to hexadecimal encoding and decoding and it still took me 2 and 1/2 hours to escape!
i also noticed only 1 review in over 2 years of being on the portal little sad no offence