Standard Keys:
   - cursor up      = forward
   - cursor down    = backward
   - cursor left    = turn left
   - cursor right   = turn right
   - 1-6            = weapon
   - tab            = automap
   - When automap active:
     - f              = follow
     - + -            = zoom map in/out
   - [ or ]         = show inventory
   - When inventory active:
     - [ or ]         = inventory left or right
     - enter          = select artifact
   - When artifact selected:
     - enter          = use artifact
   - ctrl           = fire
   - space          = use
   - alt            = strafe
   - shift          = speed
   - esc            = menu
   - del            = gamma corection
   - help           = pause
   - strafe left    = ,
   - strafe right   = .
     (strafe can be also performed with left or right keys and ALT)
   - jump           = /
   - panic key      = backspace
     (panic key = PANIC! Use whatever you have!
   - 7(num key pad) = look up
   - 4(num key pad) = look center
   - 1(num key pad) = look down
   - 9(num key pad) = fly up
   - 6(num key pad) = fly center
   - 3(num key pad) = fly down