Are you new to this crypto gambling industry or are you new to this crypto world in general? I think it is very easy to make a deposit in any sites, just send your coin from your wallet to the deposit address you get from the site. I wonder why you ask this very simple thing as it wont be asked by someone who is familiar with cryptocurrency in general so I guess you are completely new to this technology. Better to learn about crypto in general first especially in how to send and receive coins/cryptocurrencies to/from your own wallet.