Igor game is not free to play and doesn't even have regional prices, and it is kinda expensive for an indie game, also BP is called “FREE” on main page of the game, so… I don't believe that purchase button is a solution here. You can check limited time event BPs in other games like Fortnite to understand how to design it well and don't make user grind every day + make devs money.
Right now, it is first BP in game, so I hope devs will hear some adequate criticism and try another approach next time. Hard grind is probably manageable for genshin-like live service games with loads of different side content, but not for party games, for sure.
