Rust is a hardcore survival game, like minecraft survival but on steroids. You gotta do everything yourself, or with a team, and build bases / get best loot and raid other bases. The game mechanics can be a difficult to get used to in the beginning, especially the pvp system, like shooting people across maps and getting all headshots, but after 2k hours that should be easy. It's definitely going to make you rage quit sometimes, and takes lots of time to get acquainted to crafting, blueprints, harvesting, rad towns, and other stuff. Theirs plenty of YouTube videos on it if you are curious to check it out!