Keys allow players to unlock Assassinations. Keys are divided up into fragments that drop in the same tier as the assassination mission. Upon obtaining enough fragments, the game will automatically create keys for the player to use on the mission.
Keys are dropped in every mission type, but Expedition missions drop the highest number of keys.
- Tier 3: Gruesome Key - Used to unlock assassinations "Zloran the Traitor", "Count Plamen", and "Pas the Biter"