Casino games focus on activities like roulette or slot machines, where you play...

https://stephensexpertword.publishlane.com/posts/is-roulette-gambling-or-betting-understanding-the-uk-definitions-and-context

Casino games focus on activities like roulette or slot machines, where you play against the house. Gambling covers all betting and games of chance regulated under the Gambling Act 2005, including lotteries and bingo