How to start an online casino involves several key steps to ensure success in a competitive market. First, research and choose a suitable jurisdiction for licensing, as this is crucial for legal operation. Next, develop a business plan that outlines your target audience, marketing strategies, and financial projections. Select reliable software providers for games and payment processing, and create a user-friendly website. Finally, implement robust security measures and responsible gaming practices to build trust with players. With careful planning and execution, you can establish a thriving online casino.