I never played any single VV game more than a half hour a day, a couple times a day. Usually it's fifteen minutes in the morning, fifteen in the evening.

The game goes on while you're away, remember; if you leave for six hours and turn the game off, six hours of work still gets done. Why does anybody feel you have to BE there for it all? I still get a sense of accomplishment, coming back to see what my tribe's achieved.

Edit: This is in reference to this: