Nightmare Mode

Nightmare Mode is an optional difficulty modifier introduced in . When Nightmare Mode is selected, up to two mission modifiers take effect that greatly increase the mission's difficulty, but completing the mission will reward players with Nightmare Mods, which positively affect two stats of a weapon, Warframe, or Companion.
To unlock Nightmare Mode on a given planet, one must complete all mission nodes on that planet.
==Mechanics==
Each planet except Empyrean Proximas and the Zariman Ten Zero has one randomly selected mission node for Nightmare Mode, appearing a scarlet background and a white swirl in lieu of a Faction icon. The Nightmare Mode mission is treated as a separate mission from the normal mission, and can only be completed once. Reruns of the mission will not yield additional Nightmare Mods. Nightmare Mode missions cycle once every 8 hours after mission completion.
All enemies encountered in Nightmare Mode have significantly increased levels, damage, and enemy spawns compared to their standard levels. Ciphers may not be used during Hacking and failure to hack any console will result in an proc applied to the player. Any summoned allied Specter will immediately be hostile to all players (except Shockwave MOAs spawned from a MOA Cabinet Spawner), indicated by a reddish distorted glow. Environmental Hazards can also appear as usual.
Endless mission types are treated as non-endless, but have higher victory conditions:
*Defense Nightmare requires 10 waves (instead of normal 5 waves) to complete.
*Interception Nightmare require 2 waves (instead of normal 1 wave) to complete.
*Excavation Nightmare require a minimum of 500 (instead of normal 100 Cryotic) before players are allowed to extract.
*Survival Nightmare require a minimum of 5 minutes to complete.
*Disruption Nightmare is endless, but you will only get one reward from the table regardless of how many rounds you complete. 
*Infested Salvage Nightmare require 2 rounds (instead of normal 1 round) to complete.
===Challenges===
Up to two of the following challenge may occur per mission, and each modifier has an equal chance of being selected.
Mission Modifier	Effect 	Notes
No Shields 	All entities have their shields reduced to zero. 	
*Overshields created by Warframe abilities do not occur while this challenge is active.
**Any MOA equipped with can still generate shields for themselves even with this challenge active.
*Hijack missions will never roll this modifier.
*By virtue of having no shields, this modifier has no effect on , , and .
*As 's entire kit revolves around using Shields in lieu of Energy, she will not be able to use any of her abilities during this modifier. 
*Affects all entities in the mission, including enemies and Rescue targets.
Timer 	The mission has a 5-minute timer that will fail the mission if it runs down. Killing enemies will add 5 seconds to the timer. 	
*Enemies dying from sources other than players (such as environmental hazards) will not contribute to the timer. Security Cameras and Corpus Turrets will contribute to the timer, however.
*Killing Desert Skates will not contribute to the timer.
*Defense, Mobile Defense, Assassination, and Survival missions will never roll this modifier.
Vampire Mode 	Players will lose 1.5% of their maximum health every second; Killing enemies will recover 12.5% of their maximum health for the entire cell. Players cannot die from the effect.	
*Killing Volatile Runners, Security Cameras and Sensor Bars will also restore health.
*Kills from abilities, including kills from summoned allies like or will also restore health.
*Indirect kills, such as the detonation of a Volatile Runner, will restore Health.
*Abilities such as 's can heal players and counteract this modifier.
*On Nightmare Rescue missions, the hostage will not lose health due to this challenge.
*Vampire mode ignores Overguard.
Energy Drain 	Players will steadily lose Energy at approximately 15 points per second. 	
* The drain rate can be slowed if or Energy Nexus is equipped.
* and ' Abilities do not rely on Energy, and both can be used in this modifier like normal.
* Energy is drained as if it were being consumed by abilities, triggering Duplex Bond.
Low Gravity 	Gravity is reduced. 	
*Will affect player maneuvers in the air, enemies, and pickups.
Death Detonation	Enemies explode upon death, dealing damage in a small area of effect. 	
*Damage done by the explosion depends on target's max health.
*Enemies cannot be damaged by other enemies detonating.
*Players do not take damage from performing melee stealth finishers.
===Retired Challenges ===
The following modifiers were present in earlier builds of the game, but have since been removed.
Mission Modifier 	Effect 	Notes
No Minimap 	Minimaps are disabled. 	Self-explanatory
Lethal Explosive Barrels	Explosive Barrels deal high, if not fatal damage.	Self-explanatory
Longer Reload 	Reload Speed is reduced by ~50%. 	Self-explanatory
No HUD 	The HUD is disabled. 	Self-explanatory
Friendly Fire 	Players and enemies can damage their allies. 	
*Less consistent than procs, some abilities (e.g. World On Fire) did not damage teammates, and Mobile Defense terminals seemed to be unaffected by AoE.
*Syndicate procs (e.g. Justice) could damage teammates, potentially downing all teammates in range. Defense objectives would not be damaged, however.
==Mission Rewards==
Below are the possible Nightmare Mode Mods that can be rewarded upon completing a Nightmare Mode mission. There are three pools of rewards that the Nightmare mission will pull from. These pools are based on the Planet where the Nightmare mission takes place, regardless of node level. Rescue missions have the potential to draw from any of the three reward pools based on the achievements performed throughout the mission:
==Notes==
*As stated above, reruns of the mission will not yield additional Nightmare Mods. If the player does rerun the mission, the mod will be greyed out with a "reward already recieved" message on top of it.
*Rotation A is presumably impossible to achieve in Infested Ship rescue missions. This is due to the fact that the rescue objective of "killed all Wardens" is most likely completed automatically since there are no Wardens present in this mission type, replaced by Infested Ancients guarding the airlocks.
== Media==
Warframe Solo Nightmare Mode
GamesWise Warframe What is NIGHTMARE MODE?
Warframe How To Get Nightmare Missions
Nightmare Mode UISwirl.png|Starchart 2.0 Nightmare Mode Appearance
Nightmare Mode UI U19.png|U19 UI
File:How To Get Nightmare Mods In Warframe - 2023 beginners guide|Nightmare Mission & Rotations Explained 
==Patch History==
==See also==
*Nightmare Mode Mods Table
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