I love to watch things grow, and nurture them. I also like to collect items to make a good item.
I love adding stats and powering up my characters in ways that take time, but not a slow boring grind, a fun and/or action packed one.
I love collecting friends by sparing them in battle, or meeting outcasts and befriending them.
I love going back time to fix things to my liking. If I choose a wrong choice from a random chance, I'd like to go back in time and with the new knowledge and do things right.
I love to start out weak and progress to strong, to take on even stronger enemies.
And probably many other other things make a game fun for me..