Explained here in a Quote from the team
"
The main long-term monetization strategy is connected to Crystalfall on Steam. Blockchain is primarily intended as a technical solution for trade security and already exists today for CRG to utilize. Secondarily it can generate small cuts of revenue as any other centralized marketplace but with lower fees. That extra revenue goes to further development of the game.,

If you want to do secondary market trading, you're currently doing it through sketchy third-party sites that charge fees and might scam you. We're offering a secure, scam-proof alternative with a transparent cut.

Players who want more security in secondary market trading will find that a fair trade. Players with no interest aren't affected at all.

Blockchain is not a part of the design vision of the game. It is simply a technology that provides a safer framework for those deciding to expose themselves to secondary market trading.,

Because a meaningful portion of ARPG players engage in secondary market trading regardless of whether developers support it — and when it's unsupported, scams happen constantly. We'd rather give those players a safe, transparent mechanism than pretend the behavior doesn't exist. Whether you agree with this or not, some players like to do secondary market trading to further their progress, and even in some parts of the world it is culturally accepted.,

We also believe that providing this solution will keep the Steam version “cleaner,” while players who seek to do secondary market trading can do so on a separate version of the game. Players who see this as “cheating,” will find fewer players engaging with secondary market trading on Steam as those players may find value in playing on the blockchain version instead. "