# Navens - Stage 4 (technology)

internal name `navens-mk04` · tier 8 (pY science pack 4, [tier 8](https://factorio.kalzumeus.com/tier/8.md))
HTML page: https://factorio.kalzumeus.com/tech/navens-mk04/

## Cost

3300 units of (1 × [pY science pack 4](https://factorio.kalzumeus.com/item/py-science-pack-4.md), 2 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 3 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 6 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 10 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 20 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 30 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 60 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 10 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 450 s each.

## Requires (2)

- [Navens - Stage 3](https://factorio.kalzumeus.com/tech/navens-mk03.md)
- [Water invertebrates - Stage 4](https://factorio.kalzumeus.com/tech/water-invertebrates-mk04.md)

## Leads to (0)

- none

## Unlocks (4 recipes)

### Navens (`navens-4`)

- 70 s · tier 8 · productivity modules allowed
- Ingredients: 2 × [Navens spores](https://factorio.kalzumeus.com/item/navens-spore.md), 5 × [Guts](https://factorio.kalzumeus.com/item/guts.md), 2 × [Special fungal substrate](https://factorio.kalzumeus.com/item/fungal-substrate-03.md), 10 × [Fertilizer](https://factorio.kalzumeus.com/item/fertilizer.md), 15 × [Biomass](https://factorio.kalzumeus.com/item/biomass.md), 100 × [Nitrogen](https://factorio.kalzumeus.com/fluid/nitrogen.md), 20 × [Urea](https://factorio.kalzumeus.com/item/urea.md), 1 × [Growth factor](https://factorio.kalzumeus.com/item/gh.md), 200 × [Knallgas-bacteria](https://factorio.kalzumeus.com/fluid/bacteria-2.md)
- Results: 28 × [Navens](https://factorio.kalzumeus.com/item/navens.md)
- Made in: Navens culture MK 01, Navens culture MK 02, Navens culture MK 03, Navens culture MK 04
- Unlocked by: [Navens - Stage 4](https://factorio.kalzumeus.com/tech/navens-mk04.md)

### Phase 4 navens breeding program (`navens-mk04`)

- 30 s · tier 8
- Ingredients: 2 × [Navens MK 03](https://factorio.kalzumeus.com/item/navens-mk03.md), 5 × [Navens spores MK 03](https://factorio.kalzumeus.com/item/navens-spore-mk03.md), 1 × [Zinc finger fusion proteins](https://factorio.kalzumeus.com/item/zinc-finger-proteins.md), 5 × [Improved fungal substrate](https://factorio.kalzumeus.com/item/fungal-substrate-02.md), 10 × [Guts](https://factorio.kalzumeus.com/item/guts.md), 10 × [Manure](https://factorio.kalzumeus.com/item/manure.md), 1000 × [Water](https://factorio.kalzumeus.com/fluid/water.md)
- Results: 0.003 × [Navens MK 04](https://factorio.kalzumeus.com/item/navens-mk04.md) (0.3% chance), 0.7 × [Navens](https://factorio.kalzumeus.com/item/navens.md) (70% chance)
- Made in: Navens culture MK 01, Navens culture MK 02, Navens culture MK 03, Navens culture MK 04
- Unlocked by: [Navens - Stage 4](https://factorio.kalzumeus.com/tech/navens-mk04.md)

### Phase 4 navens cultivation program (`navens-mk04-breeder`)

- 80 s · tier 8
- Ingredients: 10 × [Navens spores MK 04](https://factorio.kalzumeus.com/item/navens-spore-mk04.md), 1 × [Xyhiphoe MK 04](https://factorio.kalzumeus.com/item/xyhiphoe-mk04.md), 10 × [Special fungal substrate](https://factorio.kalzumeus.com/item/fungal-substrate-03.md), 500 × [Knallgas-bacteria](https://factorio.kalzumeus.com/fluid/bacteria-2.md), 25 × [Urea](https://factorio.kalzumeus.com/item/urea.md)
- Results: 8 × [Navens MK 04](https://factorio.kalzumeus.com/item/navens-mk04.md), 1 × [Navens MK 04](https://factorio.kalzumeus.com/item/navens-mk04.md) (25% chance of 4)
- Made in: Navens culture MK 01, Navens culture MK 02, Navens culture MK 03, Navens culture MK 04
- Unlocked by: [Navens - Stage 4](https://factorio.kalzumeus.com/tech/navens-mk04.md)

### Phase 4 navens spore collection program (`navens-spore-mk04`)

- 50 s · tier 8
- Ingredients: 2 × [Navens MK 04](https://factorio.kalzumeus.com/item/navens-mk04.md)
- Results: 10 × [Navens spores MK 04](https://factorio.kalzumeus.com/item/navens-spore-mk04.md)
- Made in: Spore collector MK 01, Spore collector MK 02, Spore collector MK 03, Spore collector MK 04
- Unlocked by: [Navens - Stage 4](https://factorio.kalzumeus.com/tech/navens-mk04.md)