Well that depends, what type of game and it’s content was developed? Is it via Poker which one uses real money for Poker-game? Then this is no doubt forbidden in Shariah because this is actually chance game, and it is not befitting for a Muslim to earn wealth with dishonesty. I mean, generally speaking a Muslim should be honest in everything, because Allah Said “you are the best nation ever walked in earth who forbid evil and enjoy what is good”
And what type of items you wanna sell in game? I really don’t think this is possible because we have online selling markets such as ebay, amazon, alibaba and so on, but avoid Dark Web at all cost.
You didn’t mentioned the exact details so that I can help you determine what is the next step you should take.
