I think the WA traps are pretty deadly - there are mummies, fire, electrical traps, and if there's no grocery store, and you're hungry, and a dart knocks you out, it could be too late to find food.... I don't want Sims to die unnaturally, and they certainly wouldn't kill each other, this is more about playing a more 'difficult' Sims3 - food and money don't just fall off trees (or appear in shops), and there are dangerous puzzles to explore!