Congrats on making it this far! Please accept that I'm being critical to try to help.

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I already have ways to message my friends, this adds no value there.

I MIGHT want to tell my friends if there were some novel games we could go on your site and play together. The one game shown when I scroll aaaaaall the way down is... the blockracer tutorial people make for their first unity game? But I can't even play it! Zero chance of me making an account without playing games first. Give users value before asking for something from them in return.

Is your business idea that you'll be a game studio?