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[Agentic AI-RPG] Agentic AI role-playing game framework — narration, NPCs, lore, and character creation are autonomous plugin agents. Build interactive fiction with DeepSeek / OpenAI / Anthropic / Qwen.

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# Covel

**A modern, agentic AI RPG. Customize every mechanic with a plugin.**

**English** · [简体中文](./README.zh-CN.md)

[![Version](https://img.shields.io/badge/version-v0.0.24-8b5cf6)](https://github.com/ackness/covel/releases/tag/v0.0.24)
[![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://raw.githubusercontent.com/ackness/covel/main/LICENSE)
[![Stage](https://img.shields.io/badge/stage-early--access-orange)](https://raw.githubusercontent.com/ackness/covel/main/<>)
[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/ackness/covel)

![Covel demo — one full session at 6× speed](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/demo.gif)

Covel is an AI RPG where the world keeps running between your turns: NPCs track how they feel about you, lore accumulates as you play, and memory carries the thread across the session. Every mechanic behind that is an **autonomous agent shipped as a plugin** — disable one, swap one, or write your own.

> **Current public release: v0.0.24**, early access — APIs, data formats, and plugin frontmatter may change between versions. Prebuilt binaries target macOS Apple Silicon and Windows x64; other platforms build from source.

## Highlights

- 🎭 **Stage mode** — a full-screen visual novel: scene backdrops, character sprites, typewriter dialog, and choice overlays. Backdrops for brand-new locations are generated on demand, mid-session.
- 🤖 **Multi-agent turns** — while the narrator writes the scene, other agents extract NPC relationships, grow the world codex, pick the on-stage cast, and maintain long-range memory — in parallel, every turn.
- 🎲 **RPG mechanics built in** — pre-rolled dice checks with visible receipts, an auto-tracked quest log, a player-managed inventory, and per-NPC affinity meters. All optional plugins; worlds can seed quests, gear, and starting affinity.
- 🧩 **Everything is a plugin** — 26 bundled agents. A plugin is a `PLUGIN.md`: YAML frontmatter for triggers/tools/events, markdown body as the agent's prompt.
- 🌍 **Three flagship worlds** — a dark-fantasy mystery, a visual-novel school romance, and a post-apocalyptic RPG expedition, all hand-built and ready to fork.
- 🔌 **Bring your own model** — OpenAI / Anthropic / DeepSeek / Qwen model slots. Local-first: SQLite on disk, API keys never persisted server-side.

## Two ways to play

|                                 Stage mode (visual novel)                                  |                                      Story mode (text)                                       |
| :----------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------: |
|                   ![Stage mode](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/readme/stage-mode.png)                    |                     ![Story mode](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/readme/text-mode.png)                     |
| Backdrops, sprites, and typewriter dialog; scene art resolves and generates as you explore | Classic narrated turns with suggested actions, inline forms, and the per-turn agent timeline |

Worlds declare their default (`defaultViewMode: stage`); you can switch any time in-session.

## Every roll leaves a receipt

![A dice check, quest progress, and a gear change posting into the turn, with the quest log open alongside](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/readme/rpg-systems.png)

A risky action resolves against dice rolled **before** the narrator writes, so the outcome cannot be retconned to fit the prose — and the arithmetic posts inline: `19 + 2 = 21 vs DC 16`. Quest progress, gear changes, and affinity shifts land in the turn the same way, then accumulate into their own panels. Dice, quests, inventory, and affinity are four separate plugins; a world seeds the opening quests, starting gear, and initial affinity, or ships without any of them.

## What the agents leave behind

![Core memory panel](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/readme/memory-panel.png)

Open a side panel mid-play and you are reading what the background agents wrote this turn: core memory (running plot, current scene, player state), the NPC relationship graph, the world codex, the on-stage cast. None of it is hand-authored — it accumulates as you play, and it is what the narrator reads back on the next turn.

## Quick start

### Play

Download the **macOS Apple Silicon** or **Windows x64** build from [Releases](https://github.com/ackness/covel/releases), then: open Settings → paste an LLM API key → pick a world → play.

Your data lives in `~/.covel/` (config, keys, SQLite, custom worlds, logs) — details in the [desktop config guide](./docs/guide/desktop-config.en.md). Per-release notes: [`docs/CHANGELOG.md`](./docs/CHANGELOG.md).

### Run from source

```bash
pnpm install
cp llm.toml.example llm.toml        # model IDs and endpoints
cp .env.llm.example .env.llm        # provider API keys
pnpm dev                            # web :5173 + server :3001 (SQLite)
```

Open <http://localhost:5173> — debug tooling lives at `/debug`. PostgreSQL, in-memory mode, and other knobs: [env registry](./docs/guide/env-registry.md).

## Worlds in the box

![World select](https://raw.githubusercontent.com/ackness/covel/main/.assets/images/readme/select-world.png)

- **Mistport Chronicles** (雾港·裂潮纪) — dark-fantasy mystery in traditional-story mode. A fog-shrouded port where every ebb bares different ruins; a guildmaster vanishes and four powers race for a key to what sleeps in the deep. Bilingual, with a seed cast and investigation-flavored memory.
- **Haruka Academy** (遥风学园) — school romance in stage mode. Clubs, exams, rumors, and quiet crushes at a seaside high school, told through a cast of eight — portraits and scene art included.
- **Emberback** (鳌背孤城·烬海纪) — post-apocalyptic RPG expedition in traditional-story mode. The last great turtle carries the last city across an ember sea — and halts, without warning, above an uncharted sunken spire. The showcase for the RPG suite: seeded quests, starting gear, NPC affinity, and five check attributes wired into the dice system, with a portrait-backed main cast.

## Create your own

Open Claude Code in this repository and use the bundled skills:

- **`/create-world`** — describe a setting; get a validated `world.yaml` + `WORLD.md` + world data, ready for `~/.covel/worlds/`.
- **`/create-plugin`** — describe the agent you want; get a validated `PLUGIN.md` + `package.json`.

An official hub for sharing plugins and world packs is on the roadmap — for now, share via Gist or fork.

## Develop

- [Plugin authoring guide](./docs/guide/plugin-authoring.md) — start here; bundled plugins under [`plugins/`](./plugins/) are working references
- [Architecture & turn pipeline](./docs/architecture/flow.md) — how a turn flows through trigger → schedule → agents → commit
- Reference: [plugin registry](./docs/reference/plugins.md) · [tool registry](./docs/reference/tools.md) · [HTTP API](./docs/reference/api.md) · [full doc index](./docs/README.md)

pnpm workspaces + Turborepo · ESM-only · TypeScript strict · React 19 + Hono + Drizzle. Repo layout and package list → [`CLAUDE.md`](./CLAUDE.md#monorepo-structure).

## Roadmap

- Linux / Intel Mac builds (macOS arm64 and Windows x64 already ship)
- Official community hub for plugins and world packs
- Plugin marketplace inside the desktop app

## Contributing & license

Issues and PRs welcome — please read [`docs/CONTRIBUTING.en.md`](./docs/CONTRIBUTING.en.md) first. Releases are tag-driven: pushing `v*` builds and publishes the macOS installer via [GitHub Actions](./.github/workflows/release.yml).

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