Keeping this in consideration, does dishonored 1 affect Dishonored 2?
No, because Dishonored 2 does not import anything from Dishonored. I reckon the developers tried to find a happy medium between the two extremes of low and high chaos.
Beside above, can I skip dishonored 1? Yes, you can go into 2 and have a great time but the story won't have the same impact. Dishonored Definitive Edition with all the DLCs was recently on sale and may still be and is well worth it. You don't have to use the powers in Dishonored 1.
Also to know, should I get dishonored 1 or 2?
When replayable missions come out (which really should've come on release) the game will be great! I prefer missions, plot and characters from Dishonored 1, but gameplay of the sequel. Guards are smarter and more challenging now, though not by much. Dishonored 2 just doesn't have the same charm for me as the first did.
Should I kill in Dishonored 2?
You never have to kill anyone in Dishonored 2. Distracting enemies and sneaking past them is a viable alternative. Sneaking up on enemies and choking them unconscious will eliminate them as threats, though you might still need to hide their bodies.
