ghostdog said:
Is Robinson's Requiem, or it's sequel Deus , any good?
I think it's best to describe them primarily as disease simulators, secondarily as sci-fi Robinson Crusoe.
They've got detailed health systems, but at the same time this means being accosted by dozens of new strands of diseases a person would get after crashlanding on a foreign planet. So you have to find/make medicines for all sorts of things, purify water, be it by boiling or using your limited number of purification tablets, and tend to your injuries. I think these are the only games where you can perform an amputation on yourself (although doing so without need will result in going into shock and dying from bleeding).
The injuries are pretty realistic, you can have cuts, broken bones, lost limbs or even eyes (if you've only got one eye, you see half of the screen, which doesn't quite make sense in tunnel vision, but what the hey). There's no insta-healing to these injuries, either. Some never heal, so often times it pays more to save/load rather than live with a lost eye or limb unless you're that damn hardcore.
Other than that you'll be fighting some hostiles with limited resources (you can also make your own weapons and traps) and will be trying to find a way off the planet. To my memory, there are some non-hostiles you can talk to in RR, I can't remember anything of the sort in Deus, but they're probably there.
Also, there's an arcade mode toggle, which sort of removes the meat of the games, so I never spent much time with it. I think it just makes more weapons available (lying about), focuses on fighting enemies and gives you a health-bar instead of the normal health system.
Overall, if you don't mind dying a lot or maybe if you're good at medicine, then you might enjoy it for sheer complexity and being a more exciting survival game than most.