Marco Guldner has been working as a Marketing Manager at kr3m. media GmbH since December 2025. He brings broad experience from various areas of digital marketing, which he built up at different companies before joining kr3m. A solid education forms the foundation of his work: Marco trained as a Management Assistant in Marketing Communications and later completed a diploma program in Online Marketing Management. His career in digital marketing began in August 2020 and has since taken him through several roles on his way to the strategic marketing of digital content. Before joining kr3m, he gained extensive experience as a Community Manager, Social Media Manager, and Head of Social Media. In these positions, he focused in particular on Facebook and Instagram marketing as well as on developing complex marketing strategies. This broad background in user communication and platform strategy now gives him deep insight into what makes digital products appealing to a wide audience. What characterizes Marco and his writing is the blend of analytical marketing and a lifelong passion for storytelling. Even back in school, he was already writing sports journalism pieces. At kr3m, he has combined this love of writing with his personal interest in games. He writes about gaming to uncover the stories behind the mechanics and to make complex topics easy to understand. Within the editorial team, Marco is regarded as a go to expert for timeless classics such as Sudoku and Snake. He has a talent for analyzing the enduring appeal of these games—which have delighted millions of people for decades—and making that fascination tangible for readers.