Warhammer 40,000: Boltgun 2 Guide | All Secrets and Purity Seals in Ark of Omen

This Warhammer 40,000: Boltgun 2 Guide Locates All Secrets and Purity Seals in Ark of Omen

Game Guide by Amaya on Oct 26, 2026

Ark of Omen contains 11 Secrets and 3 Purity Seals across Crushing Heresy, Vicious Circles, and Ascent of the Arkifane. Each Level has one Purity Seal, so explore side passages, shoot hidden switches, and check beneath platforms before moving on.

crushing heresy secret seal

Crushing Heresy – All Secrets and Purity Seals

Crushing Heresy contains 4 Secrets and 1 Purity Seal.

Secret 1 – Machine Spirit

On the way to the Red Key, drop onto the conveyor belt beneath the crushing pistons. Turn around and move against the belt's direction. Carefully avoid the pistons and flames until you reach the far end, where you can collect the Machine Spirit upgrade.

Secret 2 – Dragonfire Boltgun Magazine

Continue toward the Red Key until you reach a room with a lift in the corner. Before using the lift, activate the switch panel on the wall beside the doorway to open a hidden drop.

Drop into the opening beneath the lift and follow the dark passage to collect the Dragonfire Boltgun magazine.

Purity Seal 1

Enter the chamber with the giant spinning cogs through the Red Door marked with the Sigma symbol. Find the thick cable on the left side and climb it to reach the wires above the machinery.

Jump across the wires until you reach the Purity Seal. Collecting it grants 50 Boltgun ammunition.

Secret 3 – Munitions Boon

After leaving the cog chamber, proceed through the corridor with flame jets and gaps along the sides. Carefully cross the beams between bursts of fire.

Check the final gap on the right and jump into the elevated opening to collect the Munitions Boon.

Secret 4 – Emperor's Visage

After opening the Purple Door marked with the Phi symbol, step onto the exterior metal walkway. Look over the right-hand railing to spot a lower platform.

Drop onto the platform and collect the Emperor's Visage, which grants 100 Faith.

Vicious Circles – All Secrets and Purity Seals

Vicious Circles contains 5 Secrets and 1 Purity Seal. Several collectibles require shooting blue switches, opening hidden passages, or timing a jump into the rotating inner ring.

vicious circles secret seal

Secret 1 – Feel No Pain

At the central circular platform with the consoles, drop down to the ground level below. Search the lower wall for a closed, barred doorway.

Interact with the door to open it, then enter the hidden alcove and collect Feel No Pain.

Secret 2 – Machine Spirit Upgrade

Progress until you have activated both the Red and Purple consoles. Return to the central hub and enter the corridor the Purple console opened.

Look for an open window hatch along the corridor. Shoot through it to hit the blue switch on the other side, then turn around and enter the newly opened wall alcove. Collect the Machine Spirit upgrade.

Secret 3 – Grenade Boost

Continue down the corridor beyond the Purple console. Watch the metal wall for a round ventilation grate.

Shoot the grate to expose the opening, then enter the vent and collect the Grenade Boost.

Secret 4 – Emperor's Visage

Go past the Yellow console into the large, tiered arena around the rotating inner ring.

Shoot the blue switches visible on the rotating structure. Look closely at the lower wall for another recessed blue switch, then shoot it to open a barred entrance.

Enter the newly opened chamber, defeat the Blue Horrors inside, and collect the Emperor's Visage.

Purity Seal 1

Return to the outer ring, where you can see the inner structure rotating. Find an opening in the rocks around the perimeter and wait for a hidden doorway in the inner ring to align with it.

When the doorway reaches the opening, jump across into the room. Avoid jumping too high or too far, as you could catch the ledge instead of landing inside. Fight through the corridor to reach the Purity Seal.

Secret 5 – Munitions Boon: Lock and Load!

Continue around the rocky outer rim, crossing the tall pillars and metal arches. Look over the outer cliff edge for a series of metal platforms below.

Carefully drop onto the steel ledges and collect the Munitions Boon: Lock and Load!

Ascent of the Arkifane – All Secrets and Purity Seals

Ascent of the Arkifane contains 2 Secrets and 1 Purity Seal. You'll find all three collectibles near the beginning of the Level.

ascent of the arkifane secret seal

Purity Seal 1

At the start of the Level, follow the first corridor and inspect the walls for a skull with a glowing blue eye.

Shoot the blue eye to make the Purity Seal appear. Collect it before continuing.

Secret 1

Continue until you reach the large elevator room. Turn right and locate the small bridge on that side.

Drop down and look underneath the bridge to find the first Secret.

Secret 2

Stay in the elevator room and cross to the opposite side. Find the second small bridge and check underneath it for the final Secret.

Final Thoughts

Ark of Omen has 11 Secrets and 3 Purity Seals across its three levels. The trickiest collectibles are the Purity Seal above the spinning cogs in Crushing Heresy and the one hidden inside the rotating structure in Vicious Circles.

Before finishing each Level, confirm that your tracker shows 4/4 Secrets and 1/1 Purity Seal in Crushing Heresy, 5/5 and 1/1 in Vicious Circles, and 2/2 and 1/1 in Ascent of the Arkifane.