COBALT GAMES / THE SULFUR FIELD MANUAL
SULFUR guides.
Build smarter.
Come home.
Turn a pocket full of loot into a plan. Scroll combinations, weapon tradeoffs and the decisions that get your progress back to the Church.
KEEP THE LOOT.
I have two scrolls.
Find what your base scrolls can make, including combinations that use the same scroll twice.
Find the combinationI want a better weapon.
Give an oil a job. Check its tradeoffs, your weapon family and the slots you have to work with.
Open the workbenchI want to keep this run.
Check the amulet, ammunition and durability. Make the next-room decision with a reason.
Check the exit planA SMALL COMBINATION. A NEW DIRECTION.
Two ingredients.
One useful starting point.
A recipe tells you what to combine. A weapon plan tells you why you want the result.
Explore this recipe
Scroll of Earth
Scroll of Embers
Scroll of LavaTHE FIELD NOTES
Start with a question.
Leave with a plan.
Eight focused guides. Practical steps, visible sources and a checklist for your next session.
8 field notes shown.
FIELD NOTE 01YOUR FIRST RELIABLE RUN3 min read
Beginner Guide: Prepare, Survive & Extract
A good first run should leave you better prepared for the next one. Learn the weapon and its ammunition, carry healing you understand, and decide what would make returning worthwhile. Early progress comes from repeatable decisions before expensive modifications.
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FIELD NOTE 02MIX THE EFFECT YOU NEED3 min read
Scroll Combinations & Recipe Guide
Start with the effect you want, then check the ingredients you can spare. A completed recipe is only the beginning: the resulting scroll still needs a suitable weapon, a free slot and a plan for its changed behavior. Use the finder alongside this guide.
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FIELD NOTE 03MAKE EVERY SLOT COUNT3 min read
Enchantments: Slots, Wear & Removal
Treat every slot as a build decision and every modification as a change to the gun’s running cost. Scrolls, oils, attachments and caliber conversion belong to different systems. Knowing which service handles each one prevents expensive attempts to undo the wrong kind of change.
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FIELD NOTE 04CHOOSE THE TRADEOFF, NOT JUST THE BONUS3 min read
Oil Guide: Benefits, Costs & Tradeoffs
The best oil is the one that solves your current weapon’s problem at a price you can accept. Compare the drawback, the supplies it changes and the job of the gun. A farming loadout and a difficult progression attempt need not value the same bonus.
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FIELD NOTE 05CHANGE THE AMMO PLAN DELIBERATELY3 min read
Chamber Chisels: Ammo Conversion and Costs
A caliber conversion changes the ammunition plan behind a weapon, not just one damage number. Choose the reserve you can support, inspect the resulting handling and keep a replacement available. The removed-attachment service does not refund a used Chamber Chisel.
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FIELD NOTE 06PACK RECOVERY THAT FITS THE RUN3 min read
Cooking: Recipes, Healing & Inventory
Cook for the recovery you need on the next outing. Check the exact ingredients, the required cooking space and the current item’s healing duration. A compact prepared meal can serve a different purpose from raw ingredients saved for a later recipe.
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FIELD NOTE 07BANK THE RUN YOU HAVE2 min read
Extraction: Amulet, Insurance & Death
A return route protects the progress you can actually bank. Check the Amulet before you need it, assess the supplies left and distinguish extraction from insurance or replication. The useful question is what another encounter risks compared with what returning would secure.
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FIELD NOTE 08KEEP A PLAN, NOT EVERY DUPLICATE3 min read
Inventory Guide: What to Keep, Bank or Sell
Give each kept item a job. Reserve what completes an active request, a known recipe or the next workable loadout, then bank it in the right place. Sell surplus when it no longer supports those plans, while keeping enough flexibility to recover from a bad run.
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THE NEXT DECISION / 20 CURATED OILS
A bottle worth a slot?
Compare our first-run picks, read the cost and choose a practical plan for your next trip.
GOOD MODIFICATIONS START WITH A QUESTION
What does your
weapon need next?
More damage can bring a new cost. More projectiles can mean more spread. Learn to read the whole modification before spending a rare item.
Understand oils & tradeoffs
PATCH WATCH / 1.0.2
Read the change.
Adjust the next run.
Launch-era rules changed. Keep removal, weapon conversions and item behavior tied to the version you are reading.
CHECKED SOURCES / CLEAR LIMITS
A field manual.
Not a claimed test run.
Reviewed for the developer’s 1.0.2 release context. Our explanations and planning prompts are original. The recipe and item reference is source-based; it does not read your inventory, consume an item or reproduce a verified Cobalt playthrough.
Latest developer Steam announcement reviewed on 2 November 2026. No installed SULFUR client was available for a native recipe or per-weapon compatibility audit.
Sources and version notes
- Perfect Random — current Steam announcements ↗Developer releases through 1.0.2, checked 2 November 2026.
- Official SULFUR Wiki — enchantment rules and recipe matrix ↗Indexed page reviewed; mechanical recipes and slot rules, not a native 1.0 data extraction.
- Official SULFUR Wiki — weapons ↗Firearm modification, durability and caliber restrictions.