Here are pictures from the first day of PAX East 2011. Highlights include Jane McGonigal's keynote, Donald Hayes playing Joust, Jared Sorensen hosting Action Castle, Andrew Plotkin on a Kickstarter panel, the Red Faction 3 exoskeleton, and cosplay of Assassin's Creed, Street Fighter's Ryu, Darkstalker's Morrigan, and Zelda's Kokiri and Sheik.

See also photos from day two and day three.