1.Hola llevo ya mucho con el juego incluso he donado tengo que pagar los 20€ de todas formas para juagr en steam ?
Yes, you have to buy the Steam version.
“Will players who have played or donated on Itch.io receive a free copy of Raft on Steam?”
We very much appreciate all the support and feedback we have gotten from our community, however, playing or donating to the itch prototype will not grant access to the Steam version of Raft.
https://steamcommunity.com/app/648800/discussions/0/3223871682627386165/