I wish to build a project where I keep my identity completely hidden. (stay anonymous)
I understand you fill your identity in the build project settings, but I have this feeling that it might be present elsewhere I may not be aware of.
For example, the visual basic editor which comes with unity required me to log in on my hotmail account, will it show my email address somewhere as a comment in the built projects code? I don’t want to show any information about myself, no account names / emails etc.
If you want to use Unity, you’ll need to register for a license (either free or otherwise), but supplying an email address is the minimum cost of usage. As for MonoDevelop (The C# code editor that come with Unity), it does not require you to sign in with any credentials.
Similarly, there are dozens of content-aware editors that do not require accounts (Atom, Sublime3, NotePad++, etc.).
As for making games completely anonymously, there are a few concerns. First, it’s not a very tempting offer:
“Install this game on your PC.”
“Who are you?”
“None of your business, just press ‘Download’.”
Installing software from someone you can’t verify is an enormous risk that most won’t take.
On a less sinister note, if someone finds a bug in your game that needs to be fixed, how are they going to contact you to let you know? Say your game randomly crashes and somehow brings down the entire system with it. How do they alert you of this? A reddit post on /r/Unity3d is about all they could do.
If you’re truly concerned about your privacy (understandable after the Equifax breaches and similar recent events), just make a new email address that you use for Unity only. I might suggest something like “jigidust.unity3d@gmail.com” or something.