Ultima II: The Revenge of the Enchantress/Enemies

Overworld enemies
HP are inversely proportional to the frequency of encounter. E.g. an enemy with few HP will appear very often, while one with lots of HP will appear seldom.

Player-type characters (thief, fighter, wizard) can be met both in the wilderness and in town. In town they will not attack the Stranger. Clerics are met in town only.

Townsfolk
These characters are met in towns, and they will not attack the Stranger. If the Stranger attacks any townsfolk, then all the guards in town will attack her. Defeating a guard is the only way to earn keys, but guards are one of the strongest opponents in the game. The HP of townsfolk (except for guards) is variable, but usually quite low.