NPC environmental vulnerability

See also: environmental combat when this is more encouraged and active part and there's elements specifically made for this

Contrast: NPC environmental immunity

In comparison with environmental combat, this is mostly for games where enemies are vulnerable to the environment but the game does not give proper tools, abilities, or such to take advantage of that. There's no knockback powerful enough to send enemies flying into the hazards or similar; requiring trickery and careful positioning to achieve instead (essentially metagaming the AI).