This guide will let you know how to unlock and complete the Nightmare Mode Missions in Warframe. You have to follow the step-by-step instructions to do so.
Step 1:
To unlock nightmare mode, you will need to complete all nodes in a planet.
Step 2:
Once you do, you will see nightmare mode missions in that said planet with different modes/challenges.
Step 3:
A planet that hasn’t been fully unlocked may look like this with Blinking blue nodes or even locked mission nodes. You also need to unlock the junctions.
Step 4:
To Easily Find Nightmare mode missions, you have to go to Alerts.
Step 5:
After completing nightmare mode, the mission will reward you with nightmare mods for weapons, warframe, or companion.