Grimrock

Are they? So if i play game again i can find different items?

Not likley, I think this game goes off the old premise of loot is what it is. Not a ranmoly gnerated table of loot.

Seems that way for the most part, but I've had snails that don't give food when most do and herders that do give food when most don't.

Nope, it's all hand crafted loot scattered about intentionally.