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I'm worried because I don't want that my game is associated with these scams, and he copied my game AND my profile picture. Why he's on me? He have other 3 games but I don't know what they are.

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Why he's on me?

That is not so. There are thousands of malware uploaded to itch. Your case is not anything special. I hope most of them were taken down. But there is basically not single week you will not find malware if you keep your eyes open. I spoke from experience, when I told you in the other thread, that this will happen or already has happened. Some mistake it for software piracy. Those exist too, but usually it is malware. 

That psa about the discord scams is not outdated. It is still ongoing. The criminals try different variations and why spam people on discord where they are constantly warned not to trust people, if they simply can upload in the open and wait for unsuspecting users to download.