# 海洋5 / Ocean 5

> slug: `hy5` · browser status: `playable` · native port: `40183`

The community calls this world "Ocean V," and despite the "hy" slug prefix suggesting kinship with hy/hy2000/hy2002 (this project's other "Ocean"-titled family), a file comparison shows hy5 is actually much closer to a different sibling: haiyang2 (Ocean II / Star-Moon Legend) elsewhere in this collection. Its adm/obj/master.lpc is byte-for-byte identical to haiyang2's, and a large sample of domain files came back roughly 90% byte-identical too — the two are effectively the same base world, not just "another branch of the Ocean line." hy5's own security daemon (securd.lpc) has been independently rewritten, and it extends haiyang2's ~141-zone map with roughly 50 more regions — Annan (Vietnam), Gaoli (Korea), a Japan region (Kobe/Kyoto), Tibet, Xinjiang, Loulan, Taiwan — making its total map one of the largest in this project, though the extension (not the whole map) is what's genuinely distinct here. It also carries the family's marriage system, a GB/Big5 character-set prompt that reads like a yes/no question but only accepts gb/g or big5/b (answering y/n loops forever), and an unusually layered new-character death-protection stack (a combat-experience threshold, safe zones, and a separate near-death auto-full-heal-once effect) that makes a natural death rare for new characters.

## Play in the browser (WebAssembly)

- Landing page (description + notes): https://mudlibs.fluffos.info/hy5/
- Play now (boots the WASM driver): https://mudlibs.fluffos.info/hy5/play.html

## Download source ZIP

- Same-origin ZIP (trimmed source tree, no need to clone the whole repo):
  https://mudlibs.fluffos.info/hy5/hy5.zip
- GitHub tree: https://github.com/fluffos/mudlibs/tree/main/libs/hy5
- README: https://github.com/fluffos/mudlibs/blob/main/libs/hy5/README.md
- Restoration notes (NOTES.md): https://github.com/fluffos/mudlibs/blob/main/libs/hy5/NOTES.md

## Run natively with FluffOS

1. Build a current FluffOS driver from https://github.com/fluffos/fluffos
   (native `build` / `build-debug`; see that repo's docs).
2. Download and unzip `hy5.zip` from the URL above (or clone
   `https://github.com/fluffos/mudlibs` and use `libs/hy5/`).
3. From the unzipped lib directory, ensure `config.fluffos` points
   `mudlib directory` at this tree (the checked-in file may contain a
   maintainer-local absolute path — edit it to your extract path).
4. Start the driver:

```bash
/path/to/fluffos/build/src/driver config.fluffos
```

5. Connect a UTF-8 MUD client to `127.0.0.1:40183`.

- Admin / wizard login: `fluffos` / `Mud@2026`
- If you host this on a public network, change the published default
  admin password before opening the port.

## Machine-readable catalog

- Site-wide catalog: https://mudlibs.fluffos.info/games.json
- Site-wide LLM overview: https://mudlibs.fluffos.info/llms.txt
- This file: https://mudlibs.fluffos.info/hy5/llms.txt