# Bevy Genre Open World

Route a Bevy 0.20 open world.

- Repository: https://github.com/thedivergentai/Game-Dev-Agentic-Skills (917 stars)
- Category: Writing
- License: LGPL-3.0
- Last updated: 2026-10-16
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add thedivergentai/Game-Dev-Agentic-Skills --skill bevy-genre-open-world -g -a claude-code -y`
Codex: `npx skills add thedivergentai/Game-Dev-Agentic-Skills --skill bevy-genre-open-world -g -a codex -y`
Cursor: `npx skills add thedivergentai/Game-Dev-Agentic-Skills --skill bevy-genre-open-world -g -a cursor -y`
Gemini CLI: `npx skills add thedivergentai/Game-Dev-Agentic-Skills --skill bevy-genre-open-world -g -a gemini-cli -y`

## Description

Route a Bevy 0.20 open world. Use when region membership is a component, the player cell is one resource, and activation runs after the cell write in one chain. Keywords: Bevy, Open world, Resident, PlayerCell, Active, chain, genre.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Bevy Open world (thin router)

Genre router. Domain work lives in the Bevy skills below.

## When to use

Load this for streaming regions and distant actors. Do not invent a world-partition type.

## ECS shape

- **Components** hold the genre's per-entity flags as plain data. This file does not name new engine types.
- **Resources** hold run-wide counters (score, wave index, seed) via bevy-data-resources.
- **Systems** read those components on `Update` or the fixed timestep from bevy-master. Order them with `.chain()` when a later system must see the result.
- **Schedule:** gameplay mode changes go through bevy-state-machines. Do not invent a genre plugin.

## Routing

- [bevy-asset-scenes](https://github.com/thedivergentai/Game-Dev-Agentic-Skills/blob/main/skills/bevy-asset-scenes/SKILL.md) - Region scenes.
- [bevy-3d-world-building](https://github.com/thedivergentai/Game-Dev-Agentic-Skills/blob/main/skills/bevy-3d-world-building/SKILL.md) - Assembly.
- [bevy-ai-navigation](https://github.com/thedivergentai/Game-Dev-Agentic-Skills/blob/main/skills/bevy-ai-navigation/SKILL.md) - Ambient actors.
- [bevy-quest-system](https://github.com/thedivergentai/Game-Dev-Agentic-Skills/blob/main/skills/bevy-quest-system/SKILL.md) - Objectives.

## Scope

Region membership and activation distance are components you own. Mesh LOD stays on bevy-3d-world-building.

## Examples

```toml
[package]
name = "open-world"
version = "0.1.0"
edition = "2021"

[dependencies]
bevy = "0.20"
```

A cell index on the player resource decides which residents are active. One system writes `PlayerCell`; the next inserts or removes `Active`.

```rust
#[derive(Component)]
struct Player;

#[derive(Component)]
struct Resident {
    cell: i32,
}

#[derive(Component)]
struct Active;

#[derive(Resource)]
struct PlayerCell(i32);

The rest: https://github.com/thedivergentai/Game-Dev-Agentic-Skills/blob/HEAD/skills/bevy-genre-open-world/SKILL.md