Horizon Zero Dawn

Cause for Concern - Farewell Side Quest Walkthrough

This guide will show you how to complete the Cause for Concern - Farewell, a side quest in Horizon Zero Dawn. Read on to learn the quest objectives, strategies, location, and rewards for the Cause for Concern - Farewell side quest.

Cause for Concern - Farewell Quest Information

General Info

Quest Giver Nil
Description Nil, a mysterious outlander, invites Aloy to raid Bandit Camps when their paths cross.
Rewards 5000 XP
Recommended Level 20

Quest Location

Map Location World Location

You can only start this quest after clearing all the Bandit Camps in the game (DLC not included). Talk to him near the Gatelands Camp to begin this quest.

Cause for Concern - Farewell Walkthrough

How to Complete

Objectives
1 Horizon Zero Dawn - Cause for Concern - Farewell - Talk to Nil.pngTalk to Nil
Talk to Nil near the Gatelands Camp to start this quest. He will invite you to go to the Spearshafts.
2 Go to the Spearshafts
Head to the Spearshafts and look for Nil atop the mountain. He will ask you to fight to death, but you have the choice to do it or not.
3 Refuse to Fight Nil
Refusing the duel will leave Nil disappointed, but alive. This will be one way to end of the quest.
Horizon Zero Dawn - Cause for Concern - Farewell - Accept Duel.pngFight Nil
You can fight Nil if you choose to accept the duel. The quest will end after talking to him before he dies.

Regardless of your choice on this quest you can still get the All Allies Joined Trophy.

Tips and Strategies

Aim for the Head

Horizon Zero Dawn - Cause for Concern - Farewell - Aim for the Head.png
You can deal more damage against Nil if you aim for his head. He is a bit more agile than normal humans, so getting the Concentration skill will help you accurately land headshots.

The Double Shot skill can also help you inflict more damage on him, and it will work well with the Concentration skill.

Get Resources First

Horizon Zero Dawn - Cause for Concern - Farewell - Get Resources.png
If you decide to accept Nil's duel to the death, you better get the resources first around the area. You can find Medicinal Herbs, crafting materials, and some potions in the supply crate nearby.

Horizon Zero Dawn Quests

Horizon Zero Dawn - All Quests Partial Banner.png
List of All Quests

Side Quests

Horizon Zero Dawn Side Quests
In her Mother's Footsteps The Forgotten Insult to Injury
Underquipped A Daughter's Vengeance A Moment's Peace
Heap of Trouble Death from the Skies Blood on Stone
Fatal Inheritance Sun and Shadow Sunstone Rock
Acquired Taste Robbing the Rich Hunters' Blind
Honor the Fallen Redmaw Weapons of the Lodge
Ancient Armory Traitor's Bounty Queen's Gambit
Cause for Concern - Farewell - -
Frozen Wilds Side Quests (DLC)
Waterlogged The Hunters Three The Survivor
Frontier Justice - -

Other Quests

Main Quests Side Quests Cauldron
Tallnecks Hunting Grounds Errands
Corrupted Zone Tutorial Quests Bandit Camps

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