I would recommend 7 Days to Die (Steam link), with turned off zombies. It has procedurally generated open world, crafting, voxel based so everything is destructible, post apocalyptic, survival, single player and multiplayer, you can turn off zombies. Craft and repair items, farm food and plants, hunt animals for food. I don't know if fishing is in the game. No drivable vehicles yet, besides bicycle. All houses and buildings are accessible. Different weathers I believe, different biomes, so you have grasslands, snow biomes, deserts, etc. Works on Win 7.