I don't know anything about RuneQuest. I have thought that the Call of Cthulhu Dark Ages game would be good for a Swords & Sorcery world like Hyboria.
I got the GURPS Conan book and Queen of the Black Coast yesterday but have not read much of it yet.
Recently, I have been experimenting with the DR armor and weapon AP of the CONAN RPG from Mongoose.
I am not sure about the results. A leather jerkin has damage reduction 4 in d20 Conan. What I did for leather armor in D&D 5th is take off the base of 10 (it is 11 + Dexterity Modifier) and let it be DR 1. I am wondering if I should decrease the AP of some of the weapons.
Plate armor in D&D 5th is AC 18. It is DR 10 in Conan. Seems like a character has to be terribly strong and/or have a really good weapon to get through that with much effect. I suppose that (DUH!) that's the idea.
Dodge 12 (10+Dex+1/2 Prof.)
Parry 13 (10+Str+Shield+1/2 prof.)
DR 3 (Chainmail shirt)
Hit Points 11 (2d8+2)
Speed 30 ft.
STR DEX CON INT WIS CHA
13(+1) 12(+1) 12(+1) 10(+0) 11(+0) 10(+0)
Proficiency Bonus +2
Skills. Deception +2, Perception +2
Passive Perception 12
Challenge 1/8 (25 xp)
War spear: Melee or Ranged weapon Attack
+3 to hit, reach 5 ft. or Range 20/60 ft.
Hit 1d8+1 piercing damage (AP 3)
Short Sword (Finesse, Light): Melee weapon Attack
+3 to hit, reach 5 ft.
Hit 1d6+1 Piercing damage
As a Zamorian, this character has disadvantage on opposed rolls when
being offered a bribe to keep quiet or look the other way (Persuasion versus Perception or Wisdom Save
versus 10 plus the briber's Persuasion (Charisma) Modifier
Equipment: War Spear, chainmail shirt, shield (buckler), and short sword