I read that post of yours warpped and it made me realise you perhaps don't know about Project Zomboid:
www.projectzomboid.comIt's pretty much that, total survival. Finding food, barricading doors and windows to keep safe at night, crafting items to help out against the zombies. All bundled up in little Amiga styled isometric graphics. Very cool.
Oh and it's in Alpha at the moment, and is working on a model much like Minecraft does.