There was a web video series in the early 2000s about an alien invasion?
I remember watching an episodic web series many many moons ago that used a highly stylized, I want to say almost cell shaded, computer animated video about a guy trying to travel across the country after some kind of event.
Each episode was done in a new location that tracked the travel across the USA and you picked your episodes by choosing a location off the map on the site.
It had a dozen or so episodes by the time I stopped watching for unremembered reasons.