Andvari
Adventurer
The HeroQuest board game from ‘89 also determines damage by subtracting the defender’s defense from the attacker’s attack. I suspect it’s a rule that has been implemented in a substantial number of ways for decades.
Descent does something very similar. Both use custom dice, although Descent is more complex due to special die faces.
Descent does something very similar. Both use custom dice, although Descent is more complex due to special die faces.