What's a good sandbox survival game thats multiplayer?

NOT minecraft. I just want to play a first person mode survival game, like there was a plane crash and now i'm stranded on an island. Or i got lost in a jungle and have to survive my way out. Does anyone know of a cheap ($10 or less) multiplayer game like this?

Reign of kings

Rust, rok, ark, etc

Your description might not match very well with this, but TERRARIA. Google it. Get it on steam.

Terraria