There are unfortunately few casino gaming titles on the Xbox console, and since its release nearly a decade ago there have been no real firm plans to put this right. On one hand there are a lot of companies putting online casino elements into their games such as Fallout: New Vegas which features a card game called ‘Caravan’ which you can play for the local currency, and some games have a gambling element incorporated such as Grand Theft Auto 5, but there have been no dedicated online casino style games released for the system.
Online poker is very well represented with a wide range of games in many different styles. The Sonic the Hedgehog saga features a casino style level that incorporates slot machines and pinball into a frantic, fast paced challenge. But even there, there is nothing really dedicated. Games such as Red Dead Redemption II have sideline distractions like Poker, Horseshoes and Horse Race Betting, and if you're a fan of the old wild west, then this might be just what you're looking for.
When it comes to a real, dedicated online casino gaming experience at sites like Online Slots X, the best bet is probably going to be found on the home computer. It's less prone to crashes, bugs and hacking and can be monitored more closely. For a simulation of the real thing where no money changes hands, you could do a lot worse than find yourself a copy of Test Drive Unlimited 2. It offers some great opportunities for poker and slot machine action on your console and what is more, you can play these casino games with other real players. So while it's not the real thing, it's as close as you're likely to get on a home console.