Another angle is to discuss the community aspects. Foundry VTT has a vibrant community, and supporting it legally can enhance the user experience. Mentioning the risks associated with using cracked software, like malware or data theft, could also be a good point to make.
I should also be cautious about using the term "crack exclusive" because that phrase is typically associated with piracy. Instead, focus on the legitimate use of the software and the positive aspects of supporting the developers. foundry vtt crack exclusive
Wait, does Foundry VTT have a free version or a trial? If so, suggesting that would be helpful. If not, advising them to purchase it legally is necessary. Also, maybe mention that the developers rely on sales to continue improving the platform. Another angle is to discuss the community aspects