What do I need to craft a Fusion Ignitor in No Man's Sky?

A Fusion Ignitor requires 1x Portable Reactor, 1x Quantum Processor, and 1x Geodesite. Each of those has its own sub-recipe chain. The full build needs gas farming (Sulphurine, Radon, Nitrogen), plant farming (Fungal Mould, Cactus Flesh, Solanium, Star Bulb, Frost Crystal), and planet minerals (Pyrite, Ammonia, Uranium).

How much does a Fusion Ignitor sell for?

A Fusion Ignitor has a base value of 15,600,000 units.

Where do I get the Fusion Ignitor blueprint?

From the Synthesis Lab on the Space Anomaly, or by raiding planetary Manufacturing Facilities.

What is Geodesite made from?

Geodesite requires 1x Dirty Bronze (50 Pyrite + 100 Pure Ferrite), 1x Herox (50 Ammonia + 50 Ionised Cobalt), and 1x Lemmium (50 Uranium + 100 Pure Ferrite).

How to Craft a Fusion Ignitor in No Man's Sky

The Fusion Ignitor sells for 15,600,000 units and is one of the highest-value craftable items in No Man’s Sky. The recipe chain is long but manageable once you know what farms to build. Here’s every ingredient, broken down to base materials.

The Full Recipe Tree

Fusion Ignitor requires:

1x Portable Reactor
1x Quantum Processor
1x Geodesite

Each of those requires its own sub-components.

Portable Reactor

Ingredient	Requires
Liquid Explosive	1x Acid + 1x Unstable Gel
Fusion Accelerant	1x Organic Catalyst + 1x Nitrogen Salt

Breaking that down further:

Component	Base Ingredients
Acid	25x Mordite + 600x Fungal Mould
Unstable Gel	200x Cactus Flesh
Organic Catalyst	1x Thermic Condensate + 1x Enriched Carbon
Nitrogen Salt	250x Nitrogen + 50x Condensed Carbon
Thermic Condensate	250x Sulphurine + 50x Condensed Carbon
Enriched Carbon	250x Radon + 50x Condensed Carbon

Quantum Processor

Ingredient	Requires
Circuit Board	1x Heat Capacitor + 1x Poly Fibre
Superconductor	1x Semiconductor + 1x Enriched Carbon

Breaking that down:

Component	Base Ingredients
Heat Capacitor	100x Frost Crystal + 200x Solanium
Poly Fibre	100x Cactus Flesh + 200x Star Bulb
Semiconductor	1x Thermic Condensate + 1x Nitrogen Salt
Enriched Carbon	250x Radon + 50x Condensed Carbon

Geodesite

Alloy	Base Ingredients
Dirty Bronze	50x Pyrite + 100x Pure Ferrite
Herox	50x Ammonia + 50x Ionised Cobalt
Lemmium	50x Uranium + 100x Pure Ferrite

What You Actually Need to Farm

Here’s the full list of base materials for one Fusion Ignitor, grouped by source type:

Gas Extractor Farm

Gas	Approximate Total Needed
Sulphurine	500x+
Radon	500x+
Nitrogen	500x+
Condensed Carbon	300x+

Run Gas Extractors on planets that produce Sulphurine (hot/volcanic), Radon (radioactive), and Nitrogen (frozen). You’ll need all three. Power with Electromagnetic Generators to avoid fuel upkeep.

Plant Farm (Biodomes or Hydroponics)

Plant	Total Needed	Native Planet
Fungal Mould	600x	Swamp/toxic
Cactus Flesh	300x	Desert
Solanium	200x	Fiery/toxic
Star Bulb	200x	Lush
Frost Crystal	100x	Frozen
Mordite	25x	Any planet (drops from creatures too)

Fungal Mould at 600x is the biggest bottleneck. It grows in swamp and toxic planet biomes, or in Biodomes with the right climate. If you don’t have a swamp planet in your home system, Biodomes are the practical route.

Planet Mining

Material	Source
Pyrite	Desert/cave deposits
Ammonia	Toxic planet surface
Uranium	Radioactive planet surface
Ionised Cobalt	Underground caves (most planets)
Pure Ferrite	Surface rocks (refine Ferrite Dust)

Pyrite, Ammonia, and Uranium each appear on specific planet types. If your home system doesn’t have all three biomes, you’ll need to grab bulk stacks when visiting those systems during normal play.

Where to Get the Blueprint

Two options:

Synthesis Lab on the Space Anomaly — buy the Fusion Ignitor blueprint and all sub-component blueprints here for Nanites. This is the reliable route.
Planetary Manufacturing Facilities — raid them until the blueprint drops. Faster if you get lucky, slow if you don’t.

You’ll also need blueprints for the intermediates: Portable Reactor, Quantum Processor, Liquid Explosive, Fusion Accelerant, Geodesite, and the three alloys (Dirty Bronze, Herox, Lemmium). Get them all at the Synthesis Lab before you start.

Crafting Order

Work from the bottom up:

Set up gas extractors for Sulphurine, Radon, and Nitrogen
Plant and harvest Fungal Mould, Cactus Flesh, Solanium, Star Bulb, Frost Crystal
Mine Pyrite, Ammonia, Uranium, Ionised Cobalt, Pure Ferrite
Craft the three alloys (Dirty Bronze, Herox, Lemmium) in a refiner to make Geodesite
Craft Thermic Condensate, Enriched Carbon, Nitrogen Salt from gases
Craft Organic Catalyst, Semiconductor, then Fusion Accelerant and Superconductor
Craft Liquid Explosive and Circuit Board from farm products
Combine into Portable Reactor and Quantum Processor
Assemble Fusion Ignitor

It looks like a lot of steps, but most of the work is just waiting for farms. Once gas extractors and plant farms are running, one collection cycle gives you enough to craft several Ignitors.