Ars Technica staffers began attending PAX West in 2007, when it was the only Penny Arcade Expo around. A lot has changed in 10 years, but the biggest difference has been the exponential growth of playable independent games on the massive show floor. Even if we didn't have to wait in a single line, four days is simply not enough time to try out the hundreds of indie titles on offer at PAX today. Still, we did our best, playing dozens of the most interesting games we could get our hands on during this year's show.