RustyKingdom is kingdom-style survival: stake your claim, build up your kingdom, and hold it against anyone who wants what you've got. It runs with custom server-side mechanics and regular admin-run events, so it's a bit more than stock survival while still being easy to hop into with a plain vanilla client.
Solo players can survive here, but crews will definitely have the easier time. Teamwork kills, so bring a buddy if you can. If you like survival with PvP, PvE, raiding, and a kingdom-style setup, this is the kind of place where claiming land and defending it actually matters.