Void Keys

Void keys are used to travel to Orokin Voids, pockets of space that contain Void Missions. They can be bought for 75 for a pack of five, found rarely as a reward for certain mission types, or obtained from Login Rewards. Keys have three ranks of difficulty and a preset mission type.

Void Key Types
Void Keys are ranked Tier 1, Tier 2, or Tier 3 and each have a preset mission type. The rank corresponds to the enemy level range and difficulty of the Void Mission, while the type determines the objective.
 * Tier I - Enemy level 15-20
 * Tier II - Enemy level 21-49
 * Tier III - Enemy levels 50-100

Available From
Spy, capture and raid missions probabilities:
 * Daily login reward.
 * Purchased in packs of 5 from the market
 * When purchased this way, one key is guaranteed to be Tier 3.
 * First key:
 * Orokin Tier 1 Extermination Key: 47.17%
 * Orokin Tier 1 Raid Key: 47.17%
 * Orokin Tier 2 Extermination Key: 2.36%
 * Orokin Tier 2 Raid Key: 2.36%
 * Orokin Tier 3 Extermination Key: 0.94%
 * Next 3 keys:
 * Orokin Tier 1 Extermination Key: 38.46%
 * Orokin Tier 1 Raid Key: 38.46%
 * Orokin Tier 2 Extermination Key: 9.61%
 * Orokin Tier 2 Raid Key: 9.61%
 * Orokin Tier 3 Extermination Key: 3.85%
 * Last key:
 * Orokin Tier 3 Extermination Key: 100%
 * Mission success reward from:
 * Raid Missions
 * Exterminate Missions
 * Endless Defense Missions
 * Tier 1:
 * Orokin Tier 1 Extermination Key: 4.42%
 * Orokin Tier 1 Raid Key: 4.42%
 * Tier 2:
 * Orokin Tier 2 Extermination Key: 2.46%
 * Orokin Tier 2 Raid Key: 2.46%
 * Tier 3:
 * Orokin Tier 3 Extermination Key: 3.16%
 * Orokin Tier 2 Raid Key: 15.18%
 * Orokin Tier 2 Extermination Key: 15.18%
 * Capture Missions
 * Spy Missions
 * Orokin Tier 1 Extermination Key: 0.17%
 * Orokin Tier 1 Raid Key: 0.17%
 * Orokin Tier 2 Extermination Key: 0.17%
 * Orokin Tier 2 Raid Key: 0.17%
 * Orokin Tier 3 Extermination Key: 0.17%