Wow, this was such a weird experience.
The character's movement is slow but I enjoyed trying to find out the codes. I did not enjoy, however, the whisperer part (I thought I had to repeat the same path twice but after some minutes I realised that the second one was different).
The music felt a bit repetitive after a while but that didn't bother me.
The graphics were fine and added mystery to the ambient.
Not a bad game overall.