Rogue Trader DLC Guide: Every Expansion Ranked

TL;DR

Rogue Trader has three expansions released and a fourth announced. Void Shadows adds the item:bladedancer and Executioner archetypes plus the companion item:kibellah, and it is the one to buy first because it changes what you can build at level 1. Lex Imperialis adds the Arbites Origin and the Overseer archetype, the whole reason to roll a shield-and-shotgun protagonist. The Infinite Museion adds the Sector Bionica augmentation system and the companion Eogunn Februs. Processional of the Damned is announced and ships inside Season Pass 2. Everything below is current on PC build 1.6.1.514 from 20 July 2026.

Every expansion at a glance

Each released expansion runs about 15 hours and lists at $17.99 on Steam in the US. The cosmetic packs (Deluxe, Voidfarer, Founders, Appearance) sit outside this list; they carry hairstyles, outfits, and implant models and change nothing mechanical.

Void Shadows (DLC I)

A Genestealer Cult has worked its way into your crew, and the whole expansion plays out on the decks of the von Valancius voidship you already fly. Owlcat used the ship's own scale as the setting, so quests run through parts of your own hull no Lord Captain has bothered to walk. Roughly 15 hours, threaded through the base campaign rather than gated behind a separate menu.

For build players this is the most important purchase in the line, and that has nothing to do with the story. Bladedancer is a Tier 1 archetype, which means you pick it at character creation and cannot reclass out of it. It is a sword specialist built on parry and dodge, it came through every balance pass including 1.6 intact, and it still holds S tier on our class tier list. It branches into item:assassin, item:master-tactician, item:arch-militant, and item:executioner, four of the eight advanced archetypes. Without Void Shadows installed before you roll a character, the strongest melee chassis in the game is not on the menu at all.

Executioner is the Tier 2 half of the pair, a damage-over-time bruiser reachable from item:warrior, item:operative, or Bladedancer. The 1.5 resistance rework let enemies shrug off a share of its DoT procs, so it sits mid-table now, though Owlcat named Bladedancer-Executioner among the builds it left alone in 1.6.

Kibellah is the companion, a Death Cult Assassin who pledges herself to the dynasty. She jumps into a pack, combos, and deletes a target, and only a dedicated Bladedancer protagonist beats her on melee burst. She is romanceable regardless of your character's gender.

Lex Imperialis (DLC II)

This is the law-enforcement expansion. The Adeptus Arbites arrive in the Koronus Expanse carrying a case, and they bring a run of new story content and locations with them. What sells it is that they also arrive as a playable identity, built on shotguns and slab shields.

The Arbites Origin

The Arbites Origin, listed in game as item:arbitrator, is a character-creation choice, so you take it at the start of a run. It opens three specialties, and the one you pick sets the whole character.

• Subductor is riot control. You close, plant a slab shield in someone's face, and grind the front rank down. This is the strongest of the three on a protagonist, built on a Warrior chassis with Weapon Skill, Strength, and Toughness in that order. Full talent order in our Arbites build guide.
• Castigator is the shotgun path, and it does something the base game never manages: it turns close-range scatter weapons into a genuine top-tier class. Build it around Ballistic Skill.
• Vigilant is the watchful control path. It is also Solomorne's specialty, which matters when you compare a player Arbites to the companion version.

The origin does not cost you an archetype. It slots onto any Tier 1 pick, most naturally Warrior or item:officer, and it is one of the routes into Overseer.

The Overseer archetype

item:overseer is the Tier 2 advanced archetype Lex Imperialis introduces. You reach it from Officer or Operative, and also from the Arbites Origin or either Psyker origin. Its signature is a fighting familiar, headlined by a cyber-mastiff that adds a second source of attacks to the character's turn. The expansion brings a wider set of familiars with it, including a cybernetic eagle.

The honest read: Overseer is a theme pick. A straightforward item:soldier or Arch-Militant outdamages it, and the familiar does not close that gap. Take it because you want to command a beast on the battlefield, not because the numbers demand it.

Solomorne Anthar

item:solomorne is a Proctor-Exactant of the Arbites who runs Overseer with the Vigilant specialty and fields the cyber-mastiff Glaito. He contacts you in Chapter 2 and joins at Footfall after you clear a main world, arriving around level 24. He is romanceable by any gender, and his romance is one of the stranger ones in the game.

In combat he lands lower-mid. His Overseer kit gets outperformed by a plain damage archetype, and Vigilant is the softest of the three Arbites specialties. Recruit him for the story, and if the Arbites fantasy is what you came for, build it on your own character instead.

The Infinite Museion (DLC III)

The third expansion follows Trazyn the Infinite and the Necron vault where he keeps stolen history, including pieces of your dynasty's past. The questline opens in Act 2 and pays off across Acts 4 and 5.

The mechanical draw is Sector Bionica, a voidship compartment holding more than 100 augments across six body slots. Installs are permanent, every augment bolts a drawback to its bonus, and each one raises a stat called Ferrum Sanctum that makes your implants hit harder while increasing the electrical and EMP damage you take. Astartes, Aeldari, Drukhari, item:cassia, and item:navigator characters cannot be augmented at all, so party planning routes around them. Our Infinite Museion DLC guide goes slot by slot through the augment list.

It shipped beside the free 1.6.0 update, which reworked grenades into Intelligence-scaling attacks that can crit and handed every save a free party-wide respec. Eogunn Februs joins as the companion, a Xenarite Tech-Priest who plays as an Officer-archetype support piece. He can appear as early as Act 2 and joins no later than Act 4.

That makes three DLC recruits competing for a party that still fields five. Our companions guide covers who earns those seats.

Processional of the Damned (DLC IV)

The fourth expansion is announced for a July to September 2026 window and has not shipped. The setting is a graveyard of ships lost to the void, with corridors that rearrange themselves and traps left by whatever came before. A new companion joins from that place, the name still unannounced. Owlcat has confirmed new enemy sets and a gameplay mechanic tied to reading the battlefield, at roughly the 15-hour length of the earlier expansions.

Season Pass 1 vs Season Pass 2

The original Season Pass shipped with the game in December 2023 and covers Void Shadows and Lex Imperialis. Both also sell standalone at $17.99, so the pass is worth pricing up only if you want the pair.

Season Pass 2 costs $29.99 in the US and covers The Infinite Museion, Processional of the Damned, and the Appearance Pack (seven hairstyles and four augmetic implant designs). Museion alone is $17.99, so about twelve dollars more buys an entire fourth expansion plus the cosmetics. If you expect to still be playing when Processional lands, take the pass. If you want the augment system and nothing else, the standalone does the job.

Switch 2 owners: check before you buy

Owlcat shipped a large optimization patch for the Switch 2 version in July 2026, and as compensation for a rough port launch, every DLC on that platform at the time (the Deluxe Pack content, Void Shadows, and Lex Imperialis) became permanently free for Switch 2 owners. The Infinite Museion and Processional of the Damned are slated to arrive free there as well. Check what is already attached to your account before spending anything.

What to buy first

1. Void Shadows. Bladedancer alone carries this expansion: a Tier 1 archetype, locked at character creation, sitting in S tier on the class tier list. Kibellah is the best melee companion in the roster on top of that. Buy it before you start a run, not halfway through one.

2. Lex Imperialis. The Arbites Origin is the second-biggest swing at character creation, and Subductor and Castigator both build into characters the base game cannot make. If shotguns and shields are the fantasy you want, this one is required. Solomorne is the weakest of the three DLC recruits, so weigh the expansion on the player options.

3. The Infinite Museion. The deepest system of the four, and the one that matters least on a first playthrough. Augments layer onto an existing character rather than opening a new one, which makes Sector Bionica a second-run purchase for most players. Buy it through Season Pass 2 rather than standalone unless you are certain you are done after this campaign.