My computer cant handle downloading new things... currently. And I use Game Engines that I don't trust yet. (The current game engine i'm using is Cyberix3D, I can download my game there but it doesn't contain http/https so I don't know if I should trust it.) so can I send a website link to my game?
Can I send a website link for my games?
Send a link to the website Cyberix3D (both an engine and website) where my game is hosted.
I think the submission policy encourages you to provide downloads straight from itch.io, so people don't have to go elsewhere to get your game. But of course you can also include a link to your project's homepage.
P.S. I see Cyberix3D relies on Flash for both editing and playing games; presumably they give you the game to download as a SWF? Itch.io supports that directly, no problem.