Hello, I just started playing this game tonight, and it's very confusing. I got past the initial thawing and escaping of the decompression warning. Now I'm starting to meet my first enemies, which appear to be zombie things with pipes for arms. Except, they just float in mid-air with their arms outstretched. I walk up to them and they grunt at me and say things, but they won't move or attack me.

Also, when I equip my wrench, it doesn't show up in my hands, and no amount of left-clicking in shoot mode will cause it to swing. Is that supposed to happen? Am I only allowed to swing the wrench at pre-determined times? I wish the game would provide a little context so I know what's going on.

If anyone could provide a little help, I'd really appreciate it.

broken install - reinstall the game.