Leo opened Internet Explorer 6. The homepage was a local news site, frozen in time with a story about a mayoral race long since decided. But in the corner of the page, where a banner ad should have been, was a blank, gray box with a puzzle piece icon.

He reached for the mouse, navigated to a long-dead Flash game site, and started a game of Desktop Tower Defense .

He leaned back in the creaky office chair, the CRT warming his face.

And then, the Compaq’s fan whirred louder, and the monitor flickered. The desktop icons blurred, and for a moment, Leo smelled ozone and old pizza—the perfume of the cyber-café where he’d first discovered Alien Hominid .

Then he tried to load a modern website. Just for fun. He typed in a news site.

He spent an hour hopping through the ruins of Flash’s golden age: the frantic, stick-figure violence of Xiao Xiao , the zen-like puzzle of Samorost , the bizarre, haunting beauty of The End of the World by Tomohiro Ikegami. Each one loaded in a heartbeat, no buffering, no login, no ads for mobile games.

He double-clicked.

Leo, a digital archaeologist of sorts, smiled. His latest project was restoring an old cyber-café time capsule—a single HP Compaq from 2006, complete with a CRT monitor that hummed like a fluorescent light. The goal was to make it run exactly as it did on a Tuesday afternoon in March 2008.

A polite, gray dialog box appeared: