Sigma resources are the Grade 6 (G6) versions of Star Trek Fleet Command’s three core resources: Σ-Parsteel, Σ-Tritanium, and Σ-Dilithium. They exist for endgame progression, Operations level 61 and up, and once you enter G6 they replace normal parsteel, tritanium, and dilithium as the currency for upgrades. You get them four ways: generators, mining with G6 survey ships, raiding, and converting normal resources in the refinery.
Why you need sigma resources
G6 arrived with ten new Operations levels (the cap moved to 70) and expanded station modules, and that whole tier runs on Sigma resources. From level 61, G6 buildings, ships, and research ask for Σ-Parsteel, Σ-Tritanium, and Σ-Dilithium instead of the basic versions. If you are pushing into G6, Sigma income becomes the new bottleneck the same way the core three were earlier.
The three sigma resources
Each Sigma resource is the G6 counterpart of a core resource and fills the same role at the higher tier:
- Σ-Parsteel – the G6 building resource, for G6 station modules.
- Σ-Tritanium – the G6 ship resource, for G6 ship tiers and upgrades.
- Σ-Dilithium – the G6 research resource, for the G6 research tree.
How to get sigma resources
- Station generators. From level 61, your generators begin producing Sigma resources passively, alongside the basic versions.
- Mining. Raw Sigma resources are mined in G6 systems, but only with G6 survey ships — ordinary survey ships cannot work these nodes. Systems below.
- Station raiding. From level 61 you can raid Sigma resources, but only after the target’s basic resources are depleted first. Sigma sits behind the normal stockpile.
- Refinery conversion. The refinery converts basic Parsteel, Tritanium, and Dilithium into their Sigma versions, and back the other way. This is the flexible option when one type is short.
A game filter lets you switch the resource display between basic and Sigma quantities, so you can read either stockpile at a glance.
Where to mine sigma resources
Raw Sigma nodes sit in the G6 systems, which start at Operations level 61 and climb from there. Warp range is the hard gate: these systems begin at warp 900 and rise past 1,600, so a G6 survey ship with deep warp research is the entry requirement. A representative sample of the entry-level Sigma systems, verified July 2026:
| System | System level | Warp |
|---|---|---|
| Gratia-3 | 61 | 900 |
| Solas Astra | 61 | 900 |
| Buyq’eal | 61 | 900 |
| Esteris | 61 | 900, hazard 1 |
| Petra | 62 | 1000, hazard 2 |
| Tir Morta | 62 | 1000, hazard 2 |
| New Bombay | 62 | 1000, hazard 2 |
| Eranias | 63 | 1100 |
| Pearl | 63 | 1100 |
| Wq’al | 64 | 1200, hazard 3 |
| Grida-7 | 64 | 1200, hazard 3 |
| Josdelf | 65 | 1250, hazard 2 |
Higher-level Sigma systems continue up past level 70 at warp 1,600 and beyond. The three Sigma resources are spread across these G6 systems, so check a specific system in game or a systems database for exactly which raw Sigma it carries.
Converting between basic and sigma
The refinery handles conversion in both directions: basic into Sigma when you need to fund G6 upgrades, and Sigma back into basic if you over-produced. Because generators pour out both tiers at level 61+, most commanders lean on generators and conversion for steady Sigma income and treat mining as a top-up for whichever type a big G6 upgrade demands.
Sigma Resources FAQ
What are Sigma resources?
They are the G6 versions of the three core resources: Σ-Parsteel, Σ-Tritanium, and Σ-Dilithium. G6 buildings, ships, and research require them instead of the basic versions from Operations level 61 onward.
Do I have to mine Sigma resources?
No. Generators produce them from level 61, and the refinery converts basic resources into Sigma. Mining with a G6 survey ship is one option among several, useful when you need a specific type quickly.
Can Sigma resources be raided?
Yes, from level 61, but only after the target’s basic resources are gone. The basic stockpile shields the Sigma one, so a raid has to burn through it first.
Can I turn Sigma back into normal resources?
Yes. The refinery converts both ways, so an oversupply of one Sigma type is not stuck; you can convert it back to basic or into whichever tier you need.