# Rammed Earth

**Entity Type:** Skill

## Properties

| Field | Value |
|-------|-------|
| Category | Military |
| Type | Discovery |
| Knowledge Cost | 8,000 |

## Description

Rammed Earth is a Military skill that reduces the upkeep cost of walls across all your islands. This skill makes maintaining defensive fortifications more economically efficient, allowing you to build extensive wall networks without straining your economy.

## Effects

Grants Effect: **Wall Upkeep**

| Scope | Effect | Value |
|-------|--------|-------|
| All islands | Wall Upkeep | -30% |

Decreases the upkeep cost of walls.

## Unlock Requirements

This is a Discovery-type skill, which makes up the majority of skills in the Anno 117 skill tree. To research it, you must first reach it via a research path. Some discoveries require additional conditions to unlock, such as housing a specific population type in Albion.

## Related Skills

Other skills in the Military category:

- Aegis Research
- Aux In, Aux Out
- Axe-Bearers
- Balearic Ballistics
- Perilous Ports
- Encampment Errands
- Carpe Civitas
- Cover positions
- Multi-task Menders
- Equicurrian Chariots
- Featherweight Frames
- Sturdy Construction
- Plated Hulls
- Dominion Research
- Here Come The Cavalry
- Imperial Measures
- Camp Campaigning
- Cataphractarii
- Co-ordinated Volleys
- Legatic Research
- Legionaries
- Legionic Research
- Manipular Manouvres
- Manor Invictus
- Nautical Research
- Ordine Research
- Parabolics
- Parmae
- Rain Of Pain
- Praetorians
- Bargain Palisades
- Pro Domo
- Provisinal Castra
- Vitruvius-class Crossbeams
- Repair Cranes
- Armousmithing
- Shipwright Studies
- Shipboard Scorpiones
- Protective Entourage
- Catapult Carriers
- Navarchal Research
- Scorpiones
- Spathas
- Brick By Brick
- Another Brick In The Wall
- Stone Walls
- Slingers
- Chariots
- Sword and Sald
- Tuatha De Danann
- Tower Ballistae
- Tower Contiguity
- Valetudinaria
- Cautious Greeting
- Tacking
- Target Practice

## Source

- [anno.land - Rammed Earth](https://anno.land/en/anno-117-skills/gestampfte-erde/)