Rogue Trader hides its best loot behind locked machines and recited prayers, and most of those gates sit right in your path during Chapters 1 and 2. None of them are optional busywork. The Eurac V lab hands out a stack of combat consumables, the First Galvanic Hymn opens a wall onto an Arc Rifle, and the Unidentified Ruins drop a Force Sword in your lap if you walk the light beam correctly. This page is the index. Each puzzle below gets a one-line read on what it is and where to find it, then a link to the full step-by-step solution so you can solve it in one pass and never trip the reset.
A few of these answer to more than one name. The community calls the same machine by whatever signpost they hit first, so a single solution often clears several search terms at once. Where that happens, it is flagged below.
Eurac V Lab Puzzle
You meet this one early. It sits in the Navis Nobilite research laboratory on Eurac V during Chapter 1, an alchemy machine with five input slots that demands the right reagents in the right order. Feed it a wrong mixture and the lab detonates and resets, so guessing is expensive. There are two valid recipes, one that yields six Adaptive Antidots and one that yields six Elixirs of Warp Neutrality, and both start by processing raw materials in the Transducer before anything else.
This is the same machine search engines surface as the Navigator lab puzzle, the Navis Nobilite lab puzzle, and the data-crypt connector puzzle. One solution covers all four names. The full reagent layout for both recipes, including which Data-Crypt Connector pairs with which output, is on the Eurac V puzzle page.
First Galvanic Hymn
Rykad Minoris, Chapter 1, in a side room of the Electrodynamic Cenobium. You stand at the Data-Altar of Sacred Analysis and recite a hymn by picking three verses in the correct order across three dialogue sets. Get the order right and a hidden wall slides open. The reward behind it is worth the trip: a hidden chest holding the Arc Rifle, a two-handed exotic weapon that chains electrocution between targets, plus the Pinpointing Visor and cargo goods. entity:pasqal Pasqal cannot feed you the answers here, so do not waste a dialogue branch asking him.
Wrong picks do not lock you out. The altar simply tells you to come back when you know the hymn. This puzzle also shows up as the Data Altar of Sacred Analysis and the Electrodynamic Cenobium prayer puzzle, all the same recitation. The exact three verses, in the order the altar wants them, are on the First Galvanic Hymn page.
Unidentified Ruins Light-Beam Puzzle
Chapter 2, deep in the Latotian's Passage system on a dead world. You activate a central pedestal, pass a Lore (Warp) check on the large Eastern Pillar to project a beam of light, then redirect that beam pillar to pillar until it strikes the statue and unlocks the secret chest. Walk the sequence correctly and the main reward is an Ancient Force Sword. There is a second, optional route that involves placing the Cracked Xenochest in the statue's jaws, which trades the Force Sword for the Chains of Domination and the Foulsight Veil and then drops you into a fight against Pink Horrors and a Screamer.
Both pillar sequences, counted touch by touch, are on the Unidentified Ruins puzzle page.
Motive Force Puzzle
Back on Rykad Minoris during Chapter 1, on the lower level of The Upperway warehouse as part of the Starport quest. The job is to route power through the room to crack a locked safe: power a cogitator, close two relays, unlatch a damper, distribute the supply of Motive Force, then unlock the safe at its terminal. Steam and traps cover the floor, so you clear hazards before you cross. The safe pays out a Stubcarbine and a entity:hand-flamer Hand Flamer.
You will find this under three names that all point at the same room: the Motive Force puzzle, the Upperway puzzle, and the warehouse safe puzzle. The full action order, including which relay and which damper, is on the Motive Force puzzle page.
Footfall Dock Code
A locked four-digit container tucked in a nook of the Void Dock on the Footfall hub. You start by looting a Strange Memo off a body near the center of the dock, which lists four clues scattered around the map: a holy book by the altar, a customs functionary by the red skull flag, a wall of ones by the window, and a self-referential hint that fixes the last digit by elimination. The container holds early-chapter armor pieces.
The code is fixed, so once you know it you can skip the legwork entirely. The four-digit answer and exactly where each digit comes from are on the Footfall dock code page.
Ancient Bunker
Oasis V, in the Nameless Star system, tied to the Mercatum Tabula Officiale quest. This one is not a logic puzzle, it is a survival run. Toxic Melting Venom gas fills the bunker, so your first task is to restart ventilation by working the boiler-room valve and the cogitator beyond it. Clear the gas and four automated turrets switch on as you leave. You can fight all four, or reach a terminal to the north-east and pass a Tech-Use check to shut the security system down and end combat outright. Loot includes the Worn Seal the quest needs and the Sworn Protector, a unique Iconoclast lasgun locked behind an Officer Key you pull off a corpse in the northern shower room.
The full ventilation route, the turret bypass, and the key location are on the Ancient Bunker page.
Where to start
If you are playing in order, you will hit the Footfall dock code, the Motive Force safe, the First Galvanic Hymn, and the Eurac V lab during Chapter 1, then the Unidentified Ruins in Chapter 2. The Ancient Bunker sits off the critical path in the Nameless Star system, so save it for when you have a strong party. Every solution page assumes you want the loot with zero failed attempts, which matters most at Eurac V, where a wrong mix costs you the whole setup. Solve that one with the page open.