MMORPG definitely, since it has the elements I love of RPG like engaging storyline, interesting characters, role playing, and you play with other peolpe. It's like having in your reach a D&D game session with friends whenever you want. As for when I found out about it, it was in college and the first game I played I think was Runescape in a school computer. Others genres I like are JRPG, RTS, and simulations games.