So I got Rust as part of the Dwarven Dairy bundle and thought I'd give it a shot. Was a little dismayed to see that it's multiplayer-only as that usually means there's going to be a few people with all the cool toys running around murdering the newbies. While that is absolutely the case here, I lucked out and had a really good experience first.
Started off in a field, in a world very reminiscent of Miasmata. Lots of dramatic lighting, nature, etc. etc. Found a tree, banged on it with my rock a little bit, got some wood out of it. Then I heard a weird buzzing sound and looked around until I saw a plane fly over and drop a parachute nearby. As it drifted downward I saw that it was a container of some sort, like a supply drop. I ran that way, and soon noticed that lots of other people had the same idea. Especially when I started hearing gunshots. So I kept my distance and watched the people murder each other over the mysterious box of goodies, then started to wander off in hopes of not dying.
I found another player in rags huddled over three backpacks, moving quickly between them while holding a crude axe. He had voice chat and begged me not to take anything, so I just hung out and watched from a few yards away. Then another player showed up and was not as friendly as I, so the two started fighting, and the first guy ran off, and the other guy gave chase, and eventually I found myself alone with these three backpacks. I looked around for the first guy for a little while, kind of trying to guard his stuff with my stupid rock, watching for the other guy to come back. But after a couple minutes, no one had returned. I figured, no sense just abandoning these bags... might as well take a look.
Within the bags I found a pistol with two rounds, some first aid kits, and some body armor. Since I'd decided their original "owner" wasn't coming back, I suited up and set to wandering again. Visibly armed and armored, the rare player I encountered was much more afraid of me than I was of them, and left me alone.
Finally I found two guys huddled around a campsite in a little shack and thought I'd come see what they were up to, especially since the sun was setting. They were very apprehensive and asked me a few times (in text and on voice chat) if I was friendly, so I told them, "the friendliest" and put my gun away just to prove it. They told me they were collecting wood to make a hut (they'd just found the other), so I started to help.
Then a fourth player approached. One of my new friends accosted him for stealing our supplies from a nearby crate, so I brought out my gun and squeezed off a shot at the thief. My new buddy cheered me on as I fired, but this being a stress server, both shots missed. My gun still made an impressive show, but was harmless as a weapon. I gave chase with my trusty rock, caught up with the villain, and beat his skull in. Then I retrieved the stolen goods and backtracked until I found my two friends again.
They were amazed that I'd caught the guy and gotten their stuff back, which included a lot of wood, some charcoal, and some uncooked chicken. The three of us headed up into the mountains and built a little shack with a firepit inside, where we set our chicken to cook. Then one of them had to log out (he crouched down in-game as players are persistent), so the two of us locked up and went hunting.
The sun was rising and it was a beautiful morning. But as we crested a hill, my friend looked back to see someone sniffing around our campsite. Fearing for our friend's safety, we returned.
And then a dude named PimpDaddyJuan used his giant assault rifle and blew us all away in two seconds.