I need help with Rust, it doesn't work

So, I launch Rust and I get shown the resolution screen and I do all that, then Rust appears on the loading screen and the words at the bottom display until bootstrapping or loading shadders or something then the game just crashes. This is so annoying since i’ve been with the game since it was released, since the start of Legacy, I’ve given it support and defended it on forums and reviews when people have tried to make it look like a disgrace of a game, yet I cannot play. I’ve had this problem before, then I fixed it and was ablee to play it for about a week, but it is happening again. Please, please can someone help me, this is really annoying and I really like the game and want to play it.