Scarlet Rivensin: The Ruiner is a dark, nightmarish, fast paced third person action modification for Doom 3 & Dhewm 3. Assume the role of a herald of Death & fights hordes of the damned using unique weapons, abilities and spells.
Name: Ruin Blade
Weapon type : melee
Description: An indestructible blade forged by Death herself from adamantine. It can kill the living, and destroy dead souls trapped outside their realms. It is the only way destroy spirits, specters and nightmare imps in the game.
I guess it's where the mod gets is name from... amongst other things...