One Castle.
One Month.
30 Founders.

Live in a European castle for one month. Build, experiment, and form lasting partnerships with exceptional founders riding the AI wave.

Watch Introduction Video

The World's
Greatest Hackathon

Total Creative Freedom

No equity required. Pay for your month-long stay and retain 100% ownership of everything you create.

All-Inclusive Experience

Castle accommodation, all meals, workspaces, and high-speed internet. Focus purely on building!

Flexible Collaboration

Work solo, maintain your existing business, form teams, or switch collaborations. Complete freedom to work how you want.

Grow Your Network

Connect with 29 other exceptional founders building at your level and make long lasting connections.

Zero Distractions

Escape the noise of city life and focus entirely on your projects in a serene, inspiring castle environment.

Rapid Development

Whether iterating on existing products or starting from scratch, our intensive environment accelerates every aspect of creation.

FAQs


We welcome founders, entrepreneurs, developers, designers, and creators who want to spend a month focused on building something meaningful. Whether you have an existing business, a side project, or a new idea, you're welcome to apply.
The castle is located in the heart of Europe, in a beautiful and secluded location. We will announcing the location to accepted applicants before you need to pay. The castle featured in the video is a fictional castle however you won't be let down — we are uncompromising on the quality of the experience and location.
We expect thousands of applications and will carefully select only the strongest founders for each cohort. After entering the queue, you will be sent a link to a form to fill out to apply. We will be in touch with you shortly after to schedule an interview. If you are selected, you will have 1 week to secure your spot.
Beds range from €5K-€10K. Everything you need for a month: accommodation in a stunning European castle, all meals, high-speed internet, dedicated workspaces, transportation from the nearest airport, and more. No equity required.
Yes, many of our founders will be maintaining their existing businesses, however the castle is a great place to focus on building something new, with like-minded founders — we expect you will want to start one or more new projects whilst your here.
Complete flexibility! Work solo, collaborate with 1-2 others, form larger teams, or even switch collaborations throughout the month. The environment naturally facilitates whatever working style suits you best.
Our first cohort starts September 2025, followed by cohorts in April and July 2026. You're welcome to apply for multiple cohorts to maximize your chances. After a successful interview and acceptance, you'll have 1 week to secure your spot with payment.
We expect thousands of applications and will carefully select only the strongest founders for each cohort. Our selection process ensures a dynamic mix of specialist skills, with a strong emphasis on rapid AI-based development of online businesses. Multiple cohorts throughout the year mean multiple opportunities to be selected.
Long-time friends and collaborators, Oli Jay, Luke Bonnici and Neal Menhinick are spearheading the first iteration of the Castle Project with close support from many others in our network.
We're always on the lookout for investors and sponsors to support The Castle Project as a platform and potentially the companies that emerge from our cohorts. Please reach out to us at [email protected] if you're interested in learning more.

Serious Founders Only

Join exceptional founders in Europe's most unique creative retreat. One month, one castle, unlimited potential. Choose from our upcoming cohorts starting this September.

30 Founders
€5K-€10K All-Inclusive

Multiple cohorts running through 2025-2026. Apply early for best cohort selection.