Do you need to download Rust?

I will probably be buying a key from the auction today, and my net is running SUPER slow ATM. So, do I need to download anything or am I right to go?

All you need is the Unity Browser Addon, the rest will download off the website it self.

TIP: Everything will redownload again from zero each time you want to play.

Rust runs on a program you’ll need to download but you do not download rust itself, I believe.
Do not quote me on this.

it takes like 2 minutes to download

It is roughly a 300MB download and depending on how Unity feels it can cache so you don’t have to re-download or tell you to basically go fuck yourself and have to download again.