In fact I am also a crypto player for more than 5 years earning free crypto without investment. To earn cryptocurrency free, basic things you need throughout understanding how to receive and withdraw through crypto wallet, exchangers (crypto bank like binance ) , what is crypto networks like bsc, polygon etc, what is POV, pos, what is staking, what is gas fee, and then try to receive and withdraw a small amount through trons through tron network, doge through bitcoin networks, wax through wax network, magic through polygon network etc if the transaction are successful, and these transactions are all very low fee so I recommend trying out these first before you start earning crypto. My recommendation is through FaucetPay lists first , then after familiarize the concept, you can start dapps (decentralized apps) you can check in dappradar, or coincekco etc! For more details and strategies playing, legit and popular games recommended that I had tried before ,you can visit my signature link below my post for reference ! (Only seen in desktop version) ! You can switch your page in mobile as desktop versions through the top right corner three dot and then choose change desktops mode! Good luck!