CHOAM
CHOAM (Combine Honnete Ober Advancer Mercantiles) is the Imperium's universal development corporation, controlling interstellar trade, resource rights, and commercial contracts across the Known Universe.
Lore
CHOAM is a massive galactic corporation that has a complete monopoly on all trade in the universe.
- Share ownership
Houses represented in the Landsraad are significant shareholders in CHOAM, and their ownership share reflects their political influence.
As the largest minority shareholder of CHOAM, the Emperor derives his power and his control over the corporation's management and organization directly from this massive financial stake.
Governed by the Great Houses and influenced by the Emperor, CHOAM distributes shares and profits according to political power, binding economic control directly to imperial authority.
- Presence on Arrakis
Arrakis remains under active Imperial oversight, and CHOAM continues to regulate spice production and commercial exploitation, making it a central force in the ongoing struggle for dominance.
Deployments
CHOAM is presented as a neutral party in the War of Assassins between the Atreides and Harkonnens, and it does not hold any territory in Hagga Basin or on the overland map.
The player can interact with the corporation's troops at military and civilian locations:
- Wreck of Proteus: CHOAM troopers guard the Imperial Penal Transport, the Proteus. The player takes a cutter ray from what appears to be a deceased trooper outside the wreck. Afterwards, they engage in a melee duel first an unshielded trooper and later a shielded one.
- Nighttime patrols: Nighttime patrol dropships (gunships), which are piloted by Sardaukar captains in Hagga Basin, deploy CHOAM Free Corps mercenaries on the ground after spotting the player with their searchlight. This searchlight turns red, and Holtzman technology is used to immobilize the player and any ground vehicle they're using. Once on the ground, mercenaries target the player and any NPCs in the surrounding area, such as those in a camp or an outpost.
- CHOAM Exchange: As the galactic monopoly on trade and commerce, the neutral bank and market are present at CHOAM exchange, which can be accessed in Arrakeen and Harko Village. 2-3 Troopers guard or patrol the Exchange entrance in each settlement. While they are armed, a settlement is marked for Kanly where no combat occurs.
- Hannivar's: Within a separate room of the bar located in Harko Village, 4 Troopers form a square perimeter around a cone of silence, where Elara Tuek sits.
- Testing Station 197: CHOAM Troopers are guarding the entrance to the testing station, at ground level. They will attack the player or any NPCs in the area. There were likely hired as mercenaries by a Water Shipper executive to recover a shipment stollen by the Kirab.
- CHOAM event: During the CHOAM Salvage Rights event, a CHOAM Merchant, which spawned in either a Tradepost or a settlement, issued contracts to target Kirab troops and surface-to-air emplacements and to retrieve cargo.
- Water Shipper's Mansion: CHOAM Troopers guard the Mansion's internal courtyard and the corridors leading to the Water Shipper's office. During the The Water Fat journey, which brings the Player to this location, Troopers engage in combat upon seeing the Player. Similarly to patrol dropships, they will deploy a searchlight and Holtzman technology after spotting the player. While engaging troops or under the searchlight, an alarm and a countdown are triggered that caused the player to be ejected to earlier area of the journey - when the timer runs out. Once the journey is completed, the Player is unable to return to this location.
- Zanovar: A note left by a CHOAM mercenary and another letter from Master Sergeant Shah to Sergeant Makarova describe the continuous rainfall on the planet. Based on these notes, CHOAM deployed on the ground troops and are receiving patrol from the Sardaukar.
In-Game
| CHOAM | |
|---|---|
| Interactive Palette | |
| Compatibility |
|
| CHOAM Shelter | |
|---|---|
| Found under: CHOAM Shelter | |
![]() | |
| Set Type | Structures |
| Total Pieces | 65 |
| CHOAM Facility | |
|---|---|
| Found under: CHOAM Facility | |
| Set Type | Structures |
| Total Pieces | 67 |
| Lattice | |
|---|---|
| Found under: CHOAM Facility | |
| Set Type | Structures |
| Total Pieces | 9 |
| CHOAM | |
|---|---|
| Found under: Decorations | |
| Set Type | Decorations |
| Total Pieces | 44 |
| CHOAM Spice Mask | |
|---|---|
| Variant Type | Garment |
| Compatibility | Light Armor |
| CHOAM Tech Sword | |
|---|---|
![]() | |
| Variant Type | Weapon |
| Compatibility |
|
| CHOAM Tech Rifle | |
|---|---|
![]() | |
| Variant Type | Weapon |
| Compatibility | Battle Rifles |
| CHOAM Tech SMG | |
|---|---|
![]() | |
| Variant Type | Weapon |
| Compatibility | Disruptor SMG |
| CHOAM Tech Pistol | |
|---|---|
![]() | |
| Variant Type | Weapon |
| Compatibility | Maula Pistols |
Attire
CHOAM Assault set
CHOAM Scout set
CHOAM Heavy set
- CHOAM Heavy Boots
- CHOAM Heavy Greaves
- CHOAM Heavy Gauntlets
- CHOAM Heavy Helmet
- CHOAM Heavy Chestplate
CHOAM Stillsuit set
Imperial Stillsuit set (designed by the finest tailors CHOAM)
- Imperial Stillsuit Mask
- Imperial Stillsuit Garment
- Imperial Stillsuit Gloves
- Imperial Stillsuit Boots
Note: CHOAM's colors are applied as the default swatch for most vehicles and placeables, include base refineries, storage units, and fabricators, which feature a mix of white and orange colors.
Gallery
Trivia
CHOAM eye extraction tool
During the A Sign From Above journey, on board the Wreck of the Hephaestus, if the Player decide to remove an eye, the Dashing Noble remarks that CHOAM makes a tool to pop an eye out while simultaneously cauterizing the hole.
Frida Maltros mentions that CHOAM's tool would have helped in obtaining eyes from the infected, while looking for a cure for the Scourge.




