Contact Us

Contact Us – sudokus.io

We’d love to hear from you—whether it’s feedback, feature ideas, or a fri endly hello!


Our Office

Forty Media OOD (sudokus.io) 5 Dobrila St., Krasno Selo District 1606 Sofia, Bulgaria


📧 Email Us

For general inquiries, feedback, or support: [email protected]


Meet the Founders

sudokus.io is brought to life by the passionate team at Forty Media:

  • Stoyan Shopov – A professional competitor turned software craftsman with 10+ years of gameplay and engineering experience; he built the real-time scoring engine and AI solvers powering our site.
  • Kalin Nikolov – A creator of over 69 solitaire variants with 20 years of expertise; he designs fair, winnable games and analyzes user gameplay to enhance the experience.

💼 Careers at Forty Media OOD

Want to help shape the future of online solitaire? We’re always looking for talented, creative, and passionate people to join our team.

Current Opportunities:

  • 🎨 Game Designer – Help us create new solitaire variations and refine existing ones.
  • 💻 Frontend Developer (React/ASP.NET Core) – Build smooth, responsive gameplay experiences.
  • 📣 Community Manager – Engage with our global community of players.

📩 To apply, send your CV and a short introduction to [email protected]


Stay Connected

Follow us for updates, community news, and new games:


Thank you for being part of the sudokus.io community—every email, like, or comment helps us make your gaming experience better. Happy shuffling!


Happy to tweak as needed!