Hell is Us

Senedra Forest 100% Completion Guide

Hell is Us Walkthrough Team

Last updated on: September 17, 2025 05:05 AM

Senedra Forest is a main location in Hell Is Us. Find out more about Senedra Forest's Good Deeds, Mysteries, puzzles, Vault of Forbidden Knowledge, important loots, Timeloops, NPCs, and a walkthrough for Senedra Forest here!

List of Contents

Walkthrough
Quests
Puzzles and Codes
Important Loot
Points of Interest
Summary
Related Guides

Senedra Forest Walkthrough

Senedra Forest Objectives
1. Go to Jova Village During Family Reunion 2. Enter the Tower During Searching for the Keystone of Terror

1. Go to Jova Village During Family Reunion

Step	Objective
1.1	Walk down the mountain then turn towards the river. Continue Southwest, and you will see a fountain in the distance. Head towards the base of the fountain and grab the Gold Medallion.
1.2	Go back to the main road and follow it to a destroyed farmhouse. Enter the Cellar and speak with Ernest Caddell, who will give you the key to the gate.
1.3	The ruins are located to the west, just outside the farm, where you will find a Scorched Bell inside a chest.
1.4	After getting the Scorched Bell, follow the wind chimes north to reach the APC, you should be able to hear in which direction the chimes are. You can also use your compass to guide you north until you reach the APC. Speak with the injured soldier beside the ancient door. He will ask you for a Medkit.
1.5	Before reaching the encampment, there is a chance for you to find a pile of colored rubble, which is connected to the Caddell Family Treasure. Find all three rubles and this will give you a key and a lockbox with the Bracelet of Ecstacy - Wanton Destruction.
1.6	Follow the trees marked with a white X until you reach the encampment. Grab the OMSIF Medkit. You can also pick up a Vial of Strange Substance on the table across from the Medkit.
1.7	There is a hidden cave behind the encampment, west of the area. Inside will be the Vault of the Copse that will require a code to unlock. Insert the Terror, Admiration, Rage, Amazement symbols to open the vault and get the contents inside. ▶︎ Senedra Forest Vault Location
1.8	Make your way back to OMSIF-0451. He will tell you to look for the Sergeant to get the keys for the APC. Receive the Ancient mechanism and find a way to enter the dungeon.
1.9	After getting the Ancient Mechanism, climb up the ladder left of the soldier and insert the mechanism into the altar to activate the puzzle.
1.10	You can find the solution to this puzzle by going to the next room. Look up and you will see a plate with a marking that looks like a fire and an eye, the last symbol is by the ladder, it is a pick axe. Approach each column and turn it to the right symbol, Fire, Eye, and Pick Axe. After solving the puzzle, the Ancient Door will open. ▶︎The Senedra Forest Dungeon Entrance Puzzle Guide
1.11	The entrance will cave in once you enter the dungeon. Continue forward, and save your progress via the manual save point before you reach the room where you will first encounter a Lymbic Entity. After getting your new gear, defeat the entity in front of you.
1.12	After defeating the Lymbic Entity, your next goal is to open the large door locked by a puzzle. To open the door, put in Tower - Serpent - Fire. The solution can be found by entering the doorway to the right of the room. There will be three plates for you to scan. Use your drone to turn on your flashlight since the room is very dark. ▶︎Senedra Forest Dungeon Door Puzzle Guide
1.13	Once you have opened the large door, climb up the ladders in the prison area until you reach the third level. There is a cell on the left side corridor where you can pick up the Bracers of Terror - Intimidating Bulwark, before entering the door to the next area.
1.14	From this point is a very straightforward path, on the way you will encounter a corpse where you can pick up the Twin Axes. On the next flight of stairs after this will be a locked door that will require two Ram Medallions to open; this is the Secrets of the Ram. You'll find this later and will have to go back into the dungeon to open this door.
1.15	Do a manual save before you enter the next door. After three rooms from the manual save, you can pick up the Ram Head Medallion - Viridian from a pile of corpses. You will use this to open another locked door later on and complete the Secrets of the Ram Mystery Puzzle.
1.16	Continue forward until you reach the room with a lever. Defeat the enemy, and pull the lever to open the door.
1.17	Upon opening the door, you will find the Sergeant's body wearing a red poncho, get the APC Keys and exit into the trenches. If you bought a deluxe version of the game, there will be a requisition note with a code here. This is the second half of a code needed for the Secret APC Cache mystery. The first half should already be in your inventory.
1.18	Upon entering the trenches continue forward, you will see a small table with a lockbox to your right, open it and take the Gold Watch. You can deliver this item to Ernest Caddell to complete the Golden Watch good deed.
1.19	Make your way out by going towards the bright red light. There is a save point you can use before exiting the trenches.
1.20	If you head east close to the trenches. Near the ramp heading to the Tower, you'll notice the entrance to an underground den close to the hillside. Do note that the tower is not accessible yet until after progressing through the Searching for the Keystone of Terror investigation. If you go underground, you will hear two women trapped behind a locked door. They will ask for your help, you will need to progress the story further until you unlock Talju to complete Forlorn Fate.
1.21	Go back the path where you came from until you reach the intersection with the broken trucks. If you look into the ruins, there is a puzzle inside the building that can be solved by inserting the Lymbic Rod - Grief, Z and the Lymbic Rod - Grief, V, which can be obtained as you progress through the story. If you take the path to the right, you'll go back to the APC.
1.22	On the path to the APC, there will be a dead body in the middle of the road. You can grab the Ram Head Medallion - Crimson from him. At this point, you can back track to the Ram Door to open it or proceed to the APC to go to Acasa Marshes and reach the Village of Jova.

Family Reunion Walkthrough

2. Enter the Tower During Searching for the Keystone of Terror

	Objectives
2.1	Obtain the Blood Queen Sword in Marastan during the Searching for the Keystone of Terror investigation. ▶︎ Marastan Symbols Puzzle Guide
2.2	Travel back to Senedra Forest. Make sure to have consumables that restore your HP, as you'll need it to solve puzzles inside the tower. Go to the northeast most area of the map to where the the tower, also known as Arcas Spire, is. Insert the Sword of the Blood Queen to unlock the entrance.
2.3	Follow the path and exit through the door that leads to an open area. Go to the other side to reach another door and go outside through the other exit. Head down past the ruined pillar and continue forward past the Protector Walker to reach a flight of stairs.
2.4	Upon reaching the top of the stairs, fight through the huge horde of enemies until you reach to the wooden scaffolding. Turn right and you'll find a save point along the path.
2.5	Past the save point, enter the room with a ladder leading downward. Continue descending through the ladders until you reach an area filled with skeletons. Follow the wooden path from there until you arrive at the elevator. There is a tunnel off to the side that leads you to a Rusted Key that starts the Emergency Stash mystery.
2.6	Head down the stairs to the right and follow the path while defeating enemies along the way. At the end of the path is a skeleton with the Gear - Spire.
2.7	Go back to the elevator and insert the gear in the mechanism below the elevator. Head up and pull the lever to move up the tower. Follow the path and fight through the hordes of enemies in the hallway. At the end of the hallway, turn right and enter another room with another horde.
2.8	Face east and climb the spiral staircase and exit to a wooden scaffolding. Head down to reach the grand staircase, and go up, where another horde awaits. There is a hole in the grand staircase that you can drop down to in order to get the key needed to unlock chest related to the Righteous Protection mystery.
2.9	Enter the next room and pass through the door to reach a hallway with a pressure plate past the pillar with the Blood Queen's head sculpture. Step on it and endure the spike damage to proceed to the next area.
2.10	In the next room, head up the stairs in front of you and turn left. Pass through the open room beside the stairs and exit to the other end. Then, step on the pressure plate labeled A1. Quickly return to the main area through the open passage behind you, and pull the Tower lever. ▶︎ Arcas Spire Tile Puzzle Guide
2.11	Next, head up the stairs in front of you and turn right. Step on the prssure plate labeled B2 located just beside the stairs. This opens up a room filled with enemies, but ignore them and quickly return to the main area through the open passage by the stairs, and pull the Skull lever.
2.12	Finally, head up the stairs in front of you and turn right, then climb the stairs up to the topmost floor. Step on the prssure plate labeled F4. Quickly head down the stairs all the way to the area with the levers while dodging the enemies.Pull the Twin-headed Snake lever, and this will open the door on the top-most floor.
2.13	Proceed through the room and climb a long flight of stairs until you reach the top with a save point. Interact with the door to open it and receive an Advanced Lymbic Forging book and an Amine Prism - Theta and Rho.
2.14	Exit outside through the door and you'll find a timeloop in the middle of the area. Head down the stairs and turn left, hug the wall until you see some stairs near the wooden scaffolding. Once you're on the second level, return towards the large staircase from where you exited, and defeat the Timeloop Guardian nearby.
2.15	Head down and proceed onwards until you reach the other side of the timeloop. Defeat the Timeloop Guardian near the timeloop itself to progress.
2.16	From the timeloop, proceed forward towards the staircase you exited out of while hugging the wall. Climb the stairs by the wall to reach the second level, and proceed forward until you reach the Artillery Walker Timeloop Guardian by the wooden scaffolding. Defeat it and head to the timeloop.
2.17	Enter the timeloop and interact with your drone. Select the Amine Prism - Theta, obtained from the previous door, to place it into the timeloop to collapse it.
2.18	Interact with the gold item on the ground and face the Terror Haze Boss. Defeat the Boss by approaching the glitching pillars to make it spawn. Once it does, attack until its health bar is depleted. Afterwards, you’ll obtain the Keystone of Terror. Exit Arcas Spire from the other side using the rusted key with the Blood Queen's face, and you'll find a chest near the elevator. Use the key you got from the hole you dropped down to along the grand staircase to open it and resolve the Righteous Protection mystery.

Searching for the Keystone of Terror Walkthrough

Senedra Forest Quests

Senedra Forest Good Deeds

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✔️	Items	Details
	Forlorn Fate	Rewards: Signet Ring of Rage - Red Tide Amine Prism - Theta Deadline: Before getting the third keystone.
	The Golden Watch	Rewards: Glyph - Waves of Grief - Base

All Good Deeds Guide

Senedra Forest Mysteries

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✔️	Items	Details
	Caddell Family Treasure	Rewards: Bracelet of Ecstasy - Wanton Destruction
	Emergency Stash	Rewards: Tuning Stone - Steady
	Lymbic Door - Senedra Hilltop	Rewards: Rearguard General Firion's Journal Ancient Scroll
	Lymbic Door - Senedra Underground	Rewards: Glyph - Rage Spike - Enhanced Sword of Ecstasy
	Righteous Protection	Rewards: Bracelet of Terror - Shadowstep
	Secret APC Cache	Rewards: Lymbic Capacitor - Small Drone Bypass - Single Mark of the Griffon
	The Secrets of the Ram	Rewards: Journal - Queen's Decree Glyph - Recoil - Base

All Mystery Solutions and Locations

Senedra Forest Puzzles and Codes

Senedra Forest Puzzles Solutions

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✔️	Puzzle	How to Solve
	Senedra Forest Dungeon Entrance Puzzle	Location: Senedra Forest Investigation: Family Reunion Solution: Rotate the pillars according to the following patterns from left to right: fire symbol, eye symbol, and pickaxe symbol.
	Senedra Forest Door Puzzle	Location: Senedra Forest Investigation: Family Reunion Solution: Swipe the symbols according to the following pattern: Tower, Serpent, and Fire.

All Puzzle Solutions

Senedra Forest Codes

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✔️	Code	How to Solve
	Senedra Forest Dungeon Puzzle Entrance	This is the code to the dungeon's entrance in Senedra Forest. Code: Fire, Eye, Picaxe
	Senedra Forest Door Puzzle	This is the code to the dial door found in the dungeon of Senedra Forest. Code: Tower, Serpent, Fire

All Codes Guide

Senedra Forest Important Loot

Senedra Forest Exploration Items

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✔️	Item	How to Get
	Amine Prism - Sigma	Exploration Item Found in the Vault of Forbidden Knowledge in Senedra Forest.
	Baby Bottles - Filled	Exploration Item Given by Ernest Caddell. Given to Judith Karry.
	Gold Watch	Exploration Item Found in a lockbox in the trenches of Senedra Forest. Return to Ernest Caddell in the farm
	Key - Brass	Exploration Item Found in the Arcas Spire. Used to open a locked chest in Arcas Spire.
	Key - Rusted (Arcas Spire)	Exploration Item Found in the Arcas Spire. Unlocks a Chest in Arcas Spire
	Key - Rusted (Senedra Forest)	Exploration Item Found near a red boulder atop a hill in Senedra Forest. Used to open a lockbox near a blue boulder, east of the OMSIF basecamp.
	Note - Caddell Treasure Hint	Exploration Item Found deep in Senedra Forest, south of the APC. Triggers Caddell Family Treasure mystery.
	Note - Caddell Treasure Hint (2)	Exploration Item Found deep in Senedra Forest, west of the APC. Triggers Caddell Family Treasure mystery.
	OMSIF Deployment Order - Senedra	Exploration Item Recovered from a fallen OMSIF Sergeant in the trenches of Senedra Forest. This deployment order is a hint to an access code for the Whistleblowers Mystery.
	OMSIF Report - Ram's Head	Exploration Item Found on the corpse of an OMSIF agent in Senedra Forest.
	Ram Head Medallion - Crimson	Exploration Item Found in the underground ruins inside Fort Maut. Used to solve the Secrets of the Ram Mystery.
	Ram Head Medallion - Viridian	Exploration Item Found in the underground ruins inside Fort Maut. Used to solve the Secrets of the Ram Mystery.

List of All Exploration Items

Senedra Forest Research Items

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✔️	Item	How to Get
	Ancient Scroll	Research Item Found inside Lymbic Door - Senedra Hilltop.
	Crown of Bones	Research Item Found at the top of Arcas Spire.
	Cufflinks	Research Item Found in the locked bunker in Senedra Forest.
	Faded Parchment	Research Item Found in Arcas Spire.
	Gold Medallion	Research Item Found near a waterfall in the beginning of the game.
	Jewelled Dagger	Research Item Found in Arcas Spire.
	Scorched Bell	Research Item Found near the Fort Maut stables, located south of the APC.
	Vial of Strange Substance	Research Item Found at the OMSIF basecamp in Senedra Forest.

List of All Research Items

Senedra Forest Investigation Items

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✔️	Item	How to Get
	Advanced Lymbic Forging	Investigation Item Found in the Arcas Spire. Give to Victor Gaz.
	Ancient Mechanism	Investigation Item Given by OMSIF-0451 after receiving the medkit. Used to unlock the door leading into Fort Maut.
	Compass	Investigation Item Acquired by default at the start of the game. Equip and use to figure out directions.
	Gear - Spire	Investigation Item Found in the Arcas Spire. Used to complete the elevator in the Arcas Spire.
	Heirloom Necklace	Investigation Item Acquired by default at the start of the game. Used to open the chest in Vitalis' basement.
	KATOCHE Datapad	Investigation Item Acquired by default at the start of the game. Use to check gained valuable information.
	Key - APC	Investigation Item Recovered from a fallen OMSIF Sergeant in the trenches of Senedra Forest. Used to unlock the APC.
	Key - Caddell Farm	Investigation Item Given by Ernest Caddell. Used to open the gate to the Senedra Forest.
	Key - Rusted (Arcas Spire Timeloop)	Investigation Item Found on a balcony of the Arcas Spire. Used to open a door in the Arcas Spire.
	Keystone of Terror	Investigation Item Found inside the Arcas Spire Used in the Lymbic Forge.
	OMSIF Medkit	Investigation Item Found at the OMSIF basecamp in Senedra Forest. Give to the wounded soldier back near the APC.
	Scroll - General Aarlon's Note	Investigation Item Found atop the Arcas Spire. Used to locate the Keystone of Terror

List of All Investigation Items

Senedra Forest Points of Interest

Senedra Forest Vaults

Vault and Rune Code	Location
Senedra Forest Vault Terror, Admiration, Rage, Amazement	Located past the OMSIF tent and inside a hidden cave.

List of All Vaults

Senedra Forest Timeloops

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✔️	Timeloop	How to Solve
	Inside the Lymbic Door	The Senedra Forest Timeloop is behind a Lymbic Door in the ruins near the hilltop. You'll need Lymbic Rod Ecstasy Z and Lymbic Rod Grief Z to unlock the door. Go downstairs and you'll see the Timeloop.
	In the Arena	The Timeloop in Arcas Spire is located in the middle of the big arena. You'll see flags on the path to it. The Timeloop itself has a huge size so it's easy to see as well.

All Timeloop and Guardian Locations

Senedra Forest NPCs

Character	Location	Investigations/ Good Deeds
Dolo Dulwich	She is trapped inside a room in the Smuggler's Den. This is near the trenches, on the hills north of Senedra Forest.	Good Deeds: • Forlorn Fate
Ernest Caddell	He is in the basement of the Ruined Farmhouse.	Investigations: • Family Reunion Good Deeds: • The Golden Watch
OMSIF-0451	he is beside the Sealed Door north of the forest.	Investigations: • Family Reunion

List of All NPCs

Senedra Forest Summary

Location Overview

World Map					In-Game Map

Related Investigations					Zones
Act 1 ・Family Reunion Act 2 ・Searching for the Keystone of Terror					・The Caddell Family Farm ・Arcas Spire
					Threat Level
					I & III
Description
A heavily forested, sparsely populated region in southern Umbrahan.

Hell is Us Related Guides

Hell is Us- Walkthrough Partial

Story Walkthrough and List of All Acts

Complete Walkthrough

Act	Investigation
Act 1	• Family Reunion • Family Legacy
Act 2	• Searching for the Keystone of Terror • Searching for the Keystone of Rage • Searching for the Keystone of Ecstasy
Act 3	• Into the Unknown

100% Location Completion Guide

List of All Locations
Senedra Forest	Acasa Marshes	Vyssa Hills
Lake Cynon	Lethe - National Library	Plains of Mist
Marastan	Talju	Lethe - Ministry of Cultural Primacy
Jeljin	Auriga Museum	-
Sub-Areas
Watcher's Nest

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Senedra Forest 100% Completion Guide

Senedra Forest Walkthrough

1. Go to Jova Village During Family Reunion

2. Enter the Tower During Searching for the Keystone of Terror

Senedra Forest Quests

Senedra Forest Good Deeds

Senedra Forest Mysteries

Senedra Forest Puzzles and Codes

Senedra Forest Puzzles Solutions

Senedra Forest Codes

Senedra Forest Important Loot

Senedra Forest Exploration Items

Senedra Forest Research Items

Senedra Forest Investigation Items

Senedra Forest Points of Interest

Senedra Forest Vaults

Senedra Forest Timeloops

Senedra Forest NPCs

Senedra Forest Summary

Location Overview

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Complete Walkthrough

100% Location Completion Guide

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