The sound was so realistic that his neighbor, an elderly veteran named Boris, dropped his tea in the apartment above, convinced the walls were finally giving way. The bass was so heavy it blew the dust out of Anton’s keyboard.

The game launched a month later. Reviewers didn't talk about the graphics or the leveling system. They only talked about the "visceral, soul-shaking" cannons. Anton became a millionaire overnight.

"The loudest sounds are always free. You just have to listen."

Anton was an indie game developer working from a cramped apartment in Omsk. His project, Viking Siege , was perfect in every way except one: the cannons sounded like wet cardboard hitting a rug. He had spent weeks recording falling trees and slamming car doors, but nothing captured the "thunder of the gods" he needed.

He clicked a link to a site that looked like it hadn't been updated since 1998. The background was neon green, and a single, giant button sat in the center: .

The phrase (cannon sound download free) might look like a simple search query, but for Anton, it was the final piece of a three-year obsession.