What is the ruling on earning money from games that rely on paying money for upgrades, and on placing advertisements on the server's website dedicated to these games, and what is the ruling on renting out the server to others?

What is permissible to play with is permissible to trade, and what is forbidden to play with is forbidden to trade. There is no harm in electronic games if they adhere to Islamic regulations. Placing commercial internet advertisements and earning from them is permissible as long as they do not include anything forbidden. There is no harm in renting out a server to someone who uses it for permissible matters.