What is the ruling on playing the game "Travianir," which is similar to "Travian," and what is the ruling on advertising it? Is it permissible to purchase diamonds within it to gain advantages? And what is the ruling on playing it without purchasing diamonds and without neglecting one's duties?

Purchasing diamonds in this game is a reprehensible act and is not permissible. Advertising the game on the website is secondary to its ruling; if the game is forbidden, then advertising it is also forbidden, based on the Almighty's saying: "And cooperate in righteousness and piety, but do not cooperate in sin and aggression. And fear Allah; indeed, Allah is severe in penalty."