Securement Silo Sigma in Once Human can be found in the Broken Delta region. Read on to learn more about Securement Silo Sigma including its location, secret room or seepage zone, as well as a walkthrough, and the rewards you earn for completing it.

Securement Silo Sigma Location and Recommended Level

Located in the Broken Delta Region

Manibus / Evolution's Call	Prismverse's Clash
Recommended Level
・Normal: Lv. 25 (1 Player) ・Hard: Lv. 50 (3 Players) ・Pro: Lv. 60 (4 Players)	・Normal: Lv. 25 (1 Player) ・Hard: Lv. 50 (3 Players) ・Pro: Lv. 60 (4 Players)

Securement Silo Sigma can be found in Broken Delta region with Gaia Cliff Monolith being the closest teleportation tower and Eastern Railway Junction as the closest settlement.

Make sure you're also at the appropriate level before taking on the dungeon to avoid dying easily.

Broken Delta Region Guide

Securement Silo Sigma Walkthrough

Securement Silo Sigma Objectives

Securement Silo Sigma Objectives
Defeat the Rosetta Enemies Loot the Access Card From Rosetta Mechanic Loot the Weapon Crate Go Through the Vent Clear the Large Room Defeat Captain Dave II - S2401

1. Defeat the Rosetta Enemies

Upon entering the silo, follow the hallway all the way to the end until you reach a room with a large device in the middle.

Defeat all the Rosetta soldiers in this room.

2. Loot the Access Card From Rosetta Mechanic

Enter the next room up ahead and defeat the Rosetta Mechanic.

Then, approach their body and pick up the Rosetta V3 Access Card. We'll need this card to access the secret room or the seepage zone later.

3. Loot the Weapon Crate

Keep moving forward, ignoring the vent on your left. Follow the hallway until you reach two rooms. Loot the weapon crate and storage crate inside.

4. Go Through the Vent

Go back to the hallway and retrace your steps until you reach the vent we ignored before. Crouch to enter it and follow its winding passageway until your reach a ladder.

Climb it and exit the vent to a large room.

5. Clear the Large Room

Defeat the soldiers in the room, then go up the stairs by the eastern wall.

You can also try your luck at the secret room by opening the red door nearby using the Access Card you got from the Rosetta Mechanic.

6. Defeat Captain Dave II - S2401

Continue to the top of the stairs and follow the hallway until you reach its end where you need to fight Captain Dave II - S2401.

Focus on taking him down as his soldiers will also die once he's down.

Securement Silo Sigma Secret Room (Seepage Zone)

Secret Room Objectives

Securement Silo Sigma Secret Room (Seepage Zone) Objectives
Use the Access Card to Open the Red Door Enter the Seepage Zone Interact with Wish Machine Defeat the Hordes of Enemies While the Wish Machine is Charging Defeat the Claw Machine Grab Your Loot

1. Use the Access Card to Open the Red Door

Before going up the stairs to fight Captain Dave, head for the red door nearby and open it using the Access Card you got from the Rosetta Mechanic earlier.

2. Enter the Seepage Zone

Press on until you see the hazy portal to the Seepage Zone. Enter it and continue down the hallway until you reach the door on the other side.

3. Interact with Wish Machine

Go through the door and interact with the Wish Machine inside to start charging it.

Brace yourself for the hordes of enemies that's to come.

4. Defeat the Hordes of Enemies While the Wish Machine is Charging

Stay near the Wish Machine while you fight off the enemies.

When the designated area gets too crowded, you can move outside of it to drive away the enemies then return when you've decreased their numbers.

You can monitor your progress in the top left of the screen.

5. Defeat the Claw Machine

Upon reaching 90 charges, the Claw Machine will spawn. Defeat it to continue charging the Wish Machine.

6. Grab Your Loot

Once the Wish Machine reaches 100 charges, the hordes of enemies will stop coming and you'll be able to grab your rewards.

If you're lucky (and in a PvP server), you might even get a Mr. Wish deviant!

Securement Silo Sigma Rewards

List of Rewards

Securement Silo Sigma Details

Securement Silo Sigma Info

Recommended Level (Manibus and Evolution's Call)	Normal: Lv. 15 (1 Player) Hard: Lv. 50 (3 Players) Pro: Lv. 60 (4 Players)
Recommended Level (Prismverse's Clash)	Normal: Lv. 25 (1 Player) Hard: Lv. 50 (3 Players) Pro: Lv. 60 (4 Players)
Region	Broken Delta
Boss	・Claw Machine ・Captain Dave II - S2401
Rewards	・Gloves Mods ・Stardust Source ・Energy Link ・Armor Mod Parts ・Weapon / Armor ・Eclipse Cortex Lv. 3 (Hard and Pro Mode)
Deviant	・Mr. Wish
Secret Room / Seepage Area?	Yes

Once Human Related Guides

All Securement Silo Guides

All Securement Silos

All Way of Winter Securement Silos

All Way of Winter Securement Silos