I am not developing a game or creating game characters. What I am trying to do is give a name to the software that I am creating in my spare time. It seems there is a game character by the same name, a popular game at that (I am not a gamer but a google search to check the name revealed it). The software is intended to be free but might make money in the future, so I want to know this.
Are names of characters in games copyrighted and is it illegal to use them to name other unrelated software components and applications that might or might not make money?