From $0 to a $1 Billion Valuation in 7 Years: How the Co-Founder of the Calm App Pivoted From Online Games to Meditation Posted by dumbcapital | Feb 8, 2019 | Startup News, Uncategorized | 0 | Before co-founding the unicorn company Calm, Michael Acton Smith ran the online gaming company that created Moshi Monsters, a U.K. sensation. Here’s his story.