Shadow Halls

The **Shadow Halls** are a side branch to the third moon, Io. It contains the special level **Dark Cathedral**.

Shadow Halls levels consist blue-gray walls and floors, and either long open chasms with thin pathways or large open rectangular rooms. Spike traps are laid about the area along pathways or walls, which will trigger after 1 turn of being stepped on and deals 25 slash damage.

## Enemies

* former CRI soldier
* former CRI sergeant
* former CRI commando
* Fiend
* Reaver
* Toxic Reaver
* Kerberos
* Ravager
* Armored Ravager
* Plasma Ravager
* Siege Ravager
* Security Drone

### Manufacturer Perk

Weapons found in the Shadow Halls, not including AV or unique weapons, have the Cartel Recon Tech manufacturer perk, granting +25% damage after moving.

### Branch Mission

Each level will have a glowing blue altar. Sacrificing an AV, exotic, unique, or ancient item on the altar will increase the difficulty level of the Dark Cathedral as well as increasing the rewards.

## Dark Cathedral

*You shouldn't have come here. Turn back while you still can...*

The Dark Cathedral entrance is in the far west. To the east, there is a grand hall leading to three wings. Upon reaching the end of the upper or lower wings, enemies will begin spawning there through portals. Be warned that there are spike traps on the paths leading to the end of each wing. After enough have been killed, warnings will be given to flee the area.

Once both side wings have been activated and cleared, returning to the center will trigger enemies to spawn there also. After defeating the last of these, the reward room will unlock.

### Enemies

* Archreaver
* Cryoreaver
* Toxic Reaver
* Cryoberos
* Armored Ravager
* Siege Ravager
* Plasma Ravager

### Special Objective

The player is able to obtain special bonuses by bringing the frozen heart from Europa Ruins' special level Frozen Temple and leaving it in the blue pentagram at the central hall of the Cathedral. When the character moves away from the pentagram, the heart disappears, and three wishes are offered with no option to refuse:

* "WEALTH!" - choose 1 of 5 unique weapons. Current health set to 20. All non-ancient healing consumables and multitools are removed from the character's inventory, level and the connected level.
* "POWER!" - Demonblood effect: +50% damage, -50% healing. Maximum health reduced by 25% and current health set to 20.
* "HEALTH!" - Demonblood effect: regenerate 5 health per turn up to 50% of the maximum health, -75% healing. Current health set to 1.

Demonblood effects do not affect healing from large medkits and military stimpacks.

Instead of this, the player can opt to sacrifice a unique item instead, which will cause the altar to offer back one of the following uniques in exchange:

* Exosuit
* Death
* Apocalypse
* Void

Note that you CAN sacrifice both an unique item and the heart in the same run, BUT ONLY IN THIS ORDER.

It is advised to clear the level first, as the demonic offering triggers the summoning of the enemies in both the center area as well as both wings.

## Rewards

* AV3 AMP for most used weapon group or Bio launcher if explosives are most used weapon group.
* AV3 plasma pistol, plasma rifle, 7.62 assault smg, or 12ga jackhammer with an advanced perk - favored unique\* Death
* AV3 marine armor or combat armor

Additional rewards for higher challenge levels:

* 1 items sacrificed -> 1 item from the ff. list: ancient phase kit, ancient salve, ancient mod pack, ancient heart elixir, ancient fire elixir or ancient blood elixir
* 2 items sacrificed -> another item from the list above
* 3 items sacrificed -> additional item from the ff. list: ancient sword, ancient gun, ancient necklace,ancient armband or ancient power elixir