we have basically the same taste in games.
Astroneer. I love that game, I'm super stoked for what it will become.
Subnautica is a game about surviving underwater after crash landing on an alien water planet. it's really cool I'd check it out.
Project Zomboid is a neat game I used to play a lot. it's an isometric zombie survival game.
Unturned is a pretty fun multiplayer zombie survival game. There's both pvp and pve, it's basically dayz with great building mechanics, and it's free.
The Forest puts you in the middle of a huge forest occupied with cannibal tribes after your plane crashes. It has multiplayer and a good building system.
The Long Dark is a game where you survive in the middle of a snowy forest making use of the environment and looting old abandoned cabins and other structures but it's stupidly expensive.
Survive The Nights is an upcoming survival game that looks pretty cool.
Stranded Deep puts you in the middle of the ocean with just a raft and you have to survive by making use of the small islands you can find scattered around.
although two of those recommendations are zombie related I'm actually not a big fan of zombie survival oddly enough
also on my wishlist, only thing about rust i'm weary of is that i've heard the community is loving horrible. like, having a hard time making a base and just living on public servers bc of starfishs and whatnot
although i don't know how far i can really take that, considering i'm sure most open world sandbox pvp games will have this problem
i can't imagine i'd have trouble running it, i run fallout 4 at ultra settings my pc is brand new
i think there's servers with pvp disabled but that sorta ruins the most important aspect of the game.
also it runs on unity so I wouldn't be so sure about that last statement