Riven Mods
What is a Riven?
Riven Mods are special mods that can feature up to four different stats, sometimes disadvantageous. Riven mods are unique in that their stats are heavily randomized, allowing for a significant variance in mod effectiveness, and because the type of Riven mod acquired is kept hidden from the player until they complete an assigned challenge for the mod. Riven mods are also exclusive to certain individual weapons, with each mod having only a single weapon associated with them. Currently, Riven mods are limited to Shotguns, Secondary weapons, Assault Rifles, Bows, Launchers, Sniper Rifles, and Melee weapons, as well as any Sentinel weapons that fall into the aforementioned categories.
How to Obtain
Riven mods can be obtained from completing sorties if the reward at the time is a riven. Also - rivens can be a quest reward at some point. I will not mention which quest.
Challenges
Each Riven that a player receives will task the player with a challenge before unveiling the user with the stats the riven has. For example, I will show the challenge riven on the left & the unveiled riven on the right.
Cycling (Rerolling) Stats
Another unique aspect of a Riven mod's stats is their ability to Cycle (re-roll) the mod stats via the Cycle function in the Mods segment in the Orbiter by spending Kuva, a resource found through Kuva Siphon objectives on planets the Kuva Fortress is in close proximity with. Cycling a Riven mod will randomly reroll the mod's stats, which can result in either better or worse stats or effects for the mod, though this will not change the weapon that the mod is assigned to first. Both the stats themselves and the percentages for the stats are changed when cycling a Riven mod, though the mod's polarity and Mastery Rank requirement will not.
After cycling a mod, both the old version of the mod and the new version is displayed, and players can choose whether to accept the new stats or revert to the old version. Regardless of the player's choice, the Kuva spent in cycling the mod will not be refunded.
The minimum cost for Cycling a Riven mod is 900 Kuva for the first cycle, with increasing costs on subsequent cycles of the same mod. Cycle cost is capped at 3500 Kuva.
After cycling a mod, both the old version of the mod and the new version is displayed, and players can choose whether to accept the new stats or revert to the old version. Regardless of the player's choice, the Kuva spent in cycling the mod will not be refunded.
The minimum cost for Cycling a Riven mod is 900 Kuva for the first cycle, with increasing costs on subsequent cycles of the same mod. Cycle cost is capped at 3500 Kuva.