What are the reliable ways to protect .Net applications?

Question

Mono

Happy New Year, colleagues!
I am engaged in game development and the question arose of writing my own engine. In principle, even without taking this into account, I would like to decide in the direction of which language to develop. I really like C# and have some experience writing XNA and would love to use it as a Monogame. Having some experience in game development, I know how sometimes it can be very easy to hack a game, which, as I understand it, is especially easy for .Net, due to its features. I tried to search for some information on the Internet, came across articles listing / comparing obfuscators or protections, in the comments to which there were reviews that they had already been successfully hacked, or deobfuscated to a completely sane state. Well, all the information that I found, in its absolute majority, is already outdated.
Therefore, I would like to ask advice from those who deal with this in practice: if I use Mono to develop an engine / games, how / how can I reliably protect the application, including from modifications?
Another option is to use C++, but I haven't written in it for so long that it would be tantamount to learning again.

Answer 1

Still not 100% secure

Answer 2

In principle, you can use the server part, on which all parameters are regulated and filtered, and only their values ​​​​are transferred to the game, this is the case in network games.