What does AI mean?

Literally: artificial intelligence. It refers to the behavior of NPCs, whether in a good or bad way. An example of good AI would be enemies (not controlled by other players) that know to avoid their weakness and dodge/block it somehow, or those that know how to open doors or get around obstacles. The opposite would be those that keep rushing toward players despite their fragility (like L4D’s normal infected or to the extreme, Dead Rising’s zombies).

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