Is this a free to play game?

No, this is not a free game.
Today, many P2E games generate a lot of cherry pickers and abuse in the process of distributing free revenue to acguire users. We are aware that this can be a risk that disrupts the ecosystem of existing players.
We believe that one of the most important things in Play-to-Earn games with NFT is to work for the benefit of the holder. So, in order to Play-to-Earn in Reta Wars, every player must have at least 1 NFT Hero.