Riven mods are special mods which multiple positive attributes and possibly one negative attribute. They can be acquired as from Sorties, Nihils or Syndicates.
They need to be unveiled by completing a Riven Challenge. There are many possible Challenges. Once you complete the challenge, the Riven Mod will be unveiled.
Type of Riven Mod | Where to get Riven Mods |
Archgun Riven Mod | Arbitration Honors |
Kitgun Riven Mod | Sorties and Nihil’s Oubliette |
Melee Riven Mod | Sorties and Nihil’s Oubliette |
Pistol Riven Mod | Sorties and Nihil’s Oubliette |
Rifle Riven Mod | Sorties and Nihil’s Oubliette |
Shotgun Riven Mod | Sorties and Nihil’s Oubliette |
Zaw Riven Mod | Sorties and Nihil’s Oubliette |
Companion Riven mods | Cephalon Simaris |
Also check the Riven Trading data. Weapon pages have the Riven Trading data also.