This is one of the simplest projects possible; the next time the subject of gaming, or what you do in your spare time comes up, tell a friend that you play Monster Rancher games. Personal recommendation from someone a person knows is one of the best ways to introduce someone to something new.

You should also think about adding a mention of Monster Rancher to your personal profile in any of your online website memberships, or even add a note about it in your signature file on boards or email. (Don't overdo it. If it looks like spam, you lose credibility.)