Your games are nice, but people have many others to choose from. You need to find other people and talk to them. Leave comments. Post on Twitter. Use forums (like this one). Keep a blog. Also, figure out what is unique and special about your games, and let people know. For example, Millenus's Greed looks very good for a game in its genre. The realistic "gamebook" aspect is very well done, and people like that kind of thing. So advertise based on that.