---
title: Game Concepts
description: Player-facing explanations of Eagle and Shardok systems.
---

These pages explain how Eagle0's major systems fit together. Use them when you want the big picture behind the command reference.

## Eagle

- [Victory and defeat](victory-and-defeat/) explains the strategic objective, leadership succession, faction destruction, and how the game ends.
- [Who you command](command-authority/) explains faction heads, faction leaders, vassals, province turns, and direct control.
- [Eagle round flow](eagle-round-flow/) explains how a strategic round advances, why actions are simultaneous, and when players see results.
- [Information and recon](information-and-recon/) explains public, hidden, scouted, and potentially stale knowledge.
- [From Eagle to Shardok](eagle-to-shardok/) explains how strategic movement turns into tactical battles and how battle results return to Eagle.
- [March and battle timeline](march-timeline/) follows one army from order submission through arrival, battle, and aftermath.

## Shardok

- [Shardok combat fundamentals](shardok-combat/) explains turns, rounds, AP, movement, attacks, terrain, morale, and vigor.
- [Shardok battles](shardok-battles/) explains tactical setup, turns, units, morale, vigor, terrain, and battle aftermath.
- [Shardok victory conditions](shardok-victory-conditions/) explains how tactical battles end.
