# Defender (technology)

internal name `defender` · tier 3 (Military science pack, [tier 3](https://factorio.kalzumeus.com/tier/3.md))
HTML page: https://factorio.kalzumeus.com/tech/defender/

## Cost

175 units of (1 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 2 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 3 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 1 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 90 s each.

## Requires (1)

- [Military science pack](https://factorio.kalzumeus.com/tech/military-science-pack.md)

## Leads to (2)

- [Distractor](https://factorio.kalzumeus.com/tech/distractor.md)
- [Follower robot count](https://factorio.kalzumeus.com/tech/follower-robot-count-1.md)

## Unlocks (1 recipes)

Other effects: maximum-following-robots-count

### Defender capsule (`defender-capsule`)

- 8 s · tier 3
- Ingredients: 3 × [Piercing rounds magazine](https://factorio.kalzumeus.com/item/piercing-rounds-magazine.md), 3 × [Simple circuit board](https://factorio.kalzumeus.com/item/electronic-circuit.md), 3 × [Small parts](https://factorio.kalzumeus.com/item/small-parts-01.md)
- Results: 1 × [Defender capsule](https://factorio.kalzumeus.com/item/defender-capsule.md)
- Made in: Burner assembling machine MK 01, Burner assembling machine MK 02, Burner assembling machine MK 03, Automated factory MK 01, Automated factory MK 02, Automated factory MK 03, Automated factory MK 04, Character, Character (flying), Mutagenic infusion,  (flying)
- Unlocked by: [Defender](https://factorio.kalzumeus.com/tech/defender.md)