At Stake, the minimum deposit amount isR$50. This means that you have to deposit at leastR$50 to be able to start trading. After you have completed the registration and verification process, you need to fund your account to start trading.
No deposits are needed as the site gives you Gold Coins and Stake Cash for gaming. You can purchase Gold Coin packages that give you free Stake Cash, and the currency is used to play games. Once you earn enough Stake Cash, you can also redeem it for cryptocurrency.