You can play games for real money at online gambling sites, on mobile apps, or live in-person.
From an online perspective, hundreds of websites and apps are dedicated to providing specific or multiple types of cash prize opportunities. Visit the individual pages dedicated to these for more detailed information; you can get to them via any of the links on this page or the main menu.
Regarding where you can play from, we may be talking about devices (which we cover in the question and answer below) or whether you’re allowed and able to play from the country where you live.
This takes us into legal gambling, and the answer is that it varies wildly depending on local regulations. The advice here is to always check local laws before registering. This is especially important if an online casino is involved since the most restrictive rules are always around games of chance.