A casino is a place where gambling is done. It is often a large room with tables for games such as poker, blackjack, and roulette. Some casinos also have bars and restaurants. Generally, a casino is designed to be attractive and welcoming, with the goal of encouraging patrons to spend money. Casinos use sounds, lights, and physical design to make it difficult to step away from the machines or cards.

It’s happened to all of us: you stride into the Luxor, Mohegan Sun or Tropicana with your wallet full of cash and plans for a bit of enjoyable, sensible gaming and maybe two rounds of cocktails. Hours later, you’re not sure what time it is or how much money you have left.

Beneath the varnish of flashing lights and free cocktails, casinos stand on a bedrock of mathematics, engineered to slowly bleed their patrons of cash. For years mathematically inclined minds have tried to turn the tables, harnessing their knowledge of probability and game theory to exploit weaknesses in a rigged system.

But in the end, it’s people that trust each other more than they do a brand—whether that’s friends who recommend a business or strangers who post online reviews. This is why casino marketers should focus on building customer loyalty through word of mouth, testimonials and photos of lucky winners. Boost discoverability by optimizing your site for keywords related to your amenities, location, unique offerings and latest events.