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'Revenue Within Days': A Teenager's Side Hustle Grew Out of a Video Game Virus — and Into a Multi-Hundred-Million-Dollar Business
entrepreneur.com/starting-a-business/teens-side-hustle-became-a-multi-hundred-million-dollar/493854
'Revenue Within Days': A Teenager's Side Hustle Grew Out of a Video Game Virus — and Into a Multi-Hundred-Million-Dollar Business Now 35, Marcin Kleczynski is a Bay Area-based founder who's continuing to scale.
Key Takeaways
It's the era of the side hustle, and if you've ever considered…
This story appeared on entrepreneur.com, 2025-07-08 15:00:00.