One of the Steam achievements is called I put on my robe and wizard hat. It is a reference to a famous internet chat transcript where someone invites other people to join a sexually-themed role-playing chat, only to divert the conversation halfway through to an absurd wizard role. In that transcript the user accidentally encounters the same victim twice.
The tutorial contains a reference to the independent game You Have to Burn the Rope. When you get to the Beholder boss near the end of the tutorial, there is a wooden board in the room with the lever you can inspect. It states that it wouldn't be a bad idea to burn the rope. In the room with the Beholder there is a rope you can burn with a fire spell, killing it instantly, referencing the main goal in the indie game. Add