Getting a fracture is very crippling at the moment, and leads to a fairly dull and very long period where you can't move very fast while it's healing. There should be some moderately realistic ways this can be made more interesting. I've been playing Dwarf Fortress a lot, and when one of your dwarfs get crippled, you can give him a crutch that over time lets him move a lot faster, there's even a separate skill for it, that way he's not horribly slow even if it costs him the use of one arm. I'd love to see some version of that in PZ as well. Also when implementing vehicles, are there any plans on doing wheelchairs? Maybe even battery-driven ones...