# Page Not Found

The URL `files/o9BbQrA1qJpEtRWLRPly` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [5.1 In-Game Marketplace](https://whitepaper.3dcity.life/5.-revenue-system/5.1-in-game-marketplace.md)
- [5.5 P2E Smart Contract Technical Analysis](https://whitepaper.3dcity.life/5.-revenue-system/5.5-p2e-smart-contract-technical-analysis.md)
- [5.4 Staking Rewards](https://whitepaper.3dcity.life/5.-revenue-system/5.4-staking-rewards.md)
- [3.3 Offline Gameplay](https://whitepaper.3dcity.life/3.-concept-and-gameplay-of-3d-city-metaverse/3.3-offline-gameplay.md)
- [8.1 Roadmap Summary](https://whitepaper.3dcity.life/8.-roadmap-and-future-plans/8.1-roadmap-summary.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://whitepaper.3dcity.life/5.-revenue-system/5.1-in-game-marketplace.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://whitepaper.3dcity.life/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://whitepaper.3dcity.life/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/5.-revenue-system/5.1-in-game-marketplace.md`).

You may also use `Accept: text/markdown` header for content negotiation.