A fully playable re-implementation of Cave Story (Doukutsu Monogatari) engine written
in [Rust](https://www.rust-lang.org/).
[Join the Discord server](https://discord.gg/fbRsNNB)
- [Get nightly builds](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master?preview) (recommended for now, has latest fixes and improvements)
Permalinks to latest builds from `master` branch:
- [Windows (64-bit)](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master/doukutsu-rs_windows-x64.zip)
- [Windows (32-bit)](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master/doukutsu-rs_windows-x32.zip)
- [macOS (Intel, 64-bit, 10.14+)](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master/doukutsu-rs_mac-x64.zip)
- [macOS (Apple M1, 11.0+)](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master/doukutsu-rs_mac-arm64.zip)
- [Linux (64-bit)](https://nightly.link/doukutsu-rs/doukutsu-rs/workflows/ci/master/doukutsu-rs_linux-x64.zip)
**macOS note:** If you get a `"doukutsu-rs" can't be opened` message, right-click doukutsu-rs.app and click open.
- [Get stable/beta builds from GitHub Releases](https://github.com/doukutsu-rs/doukutsu-rs/releases) (Includes Android builds)
#### Data files
In order to work doukutsu-rs needs to be paired with supported data files. This repository does not contain any data
files.
doukutsu-rs works fine with freeware data files or [NXEngine(-evo)](https://github.com/nxengine/nxengine-evo) or from a
supported copy of [Cave Story+](https://www.nicalis.com/games/cavestory+).
How to set up data files on Android
If your phone has an app called **"Files"**:
1. Launch this app.
2. Press **☰** on the top left corner.
3. Tap on **"doukutsu-rs game data"**.
4. Copy your game data files to the opened folder.
If your phone does not have this app:
1. Install the **"Material Files"** app from *Hai Zhang* and launch it([Google Play](https://play.google.com/store/apps/details?id=me.zhanghai.android.files) | [F-Droid](https://f-droid.org/en/packages/me.zhanghai.android.files/) | [Github Releases](https://github.com/zhanghai/MaterialFiles/releases)).
2. Press **☰** on the top left corner.
3. Press **"+ Add storage"**.
4. In the window that pops up, press **"External storage"**.
5. Press **☰** on the top left corner.
6. Tap on **"doukutsu-rs game data"**.
7. Press the large blue button at the bottom labelled **"USE THIS FOLDER"**.
8. Then click on **☰** in the top left corner again and open.
9. Tap on **"files"** above **"+ Add storage"**.
10. Copy your game data files to the opened folder.
#### Supported game editions and data file acquisition guides
**Freeware**
doukutsu-rs works out of the box when it's placed in the same directory as the original Doukutsu.exe executable. On the initial
startup, doukutsu-rs will automatically extract the additional resources that are embedded in the vanilla game into the `data`
directory. Until that is done, both doukutsu-rs and the vanilla executable have to exist in the directory.
Example root directory
**Cave Story+**
doukutsu-rs can be used as drop-in replacement for `CaveStory+.exe`. No modifications to game files are needed.
**Original version (first released in 2011 on Steam)** - expand for instructions
Steam release (Win/Mac/Linux)
The `data` folder is in the same place across all platforms.
If you want to use doukutsu-rs as a substitute for Mac version of Cave Story+ (which at moment of writing doesn't work
on 10.15+ anymore), do the following:
1. Find the doukutsu-rs executable:
- In AppVeyor builds, it's in `doukutsu-rs.app/Contents/MacOS/doukutsu-rs`
- In your own builds, it's in `target/(release|debug)/doukutsu-rs`
2. Open Steam Library, select `Cave Story+`, press the `Manage` button (gear icon) and select `Properties...`
3. Select `Local Files` and press `Browse...`.
4. Open the `Cave Story+.app` bundle and navigate to `Contents/MacOS` directory.
5. Rename the `Cave Story+` executable to something else or delete it.
6. Copy the doukutsu-rs executable and rename it to `Cave Story+`.
7. Launch the game from Steam and enjoy!
Epic Games Store
Check your default installation directory.
GOG
Check your default installation directory.
Humble Bundle
The archive from Humble Bundle contains the necessary `data` folder, in the same folder as `CaveStory+.exe`.
WiiWare
1. [Dump Your WiiWare `.wad`](https://wii.guide/dump-wads.html)
2. [Extract and decompress the `data` folder](https://docs.google.com/document/d/1hDNDgNl0cUDlFOQ_BUOq3QCGb7S0xfUxRoob-hfM-DY)
Example of a [valid uncompressed `data` folder](https://user-images.githubusercontent.com/53099651/159585593-43fead24-b041-48f4-8332-be50d712310d.png)
**Remastered version (first released in 2017 on Switch)**
Note that this version is **incompatible** with saves from the original version.
Interchanging the save files may result in spawning in wrong locations, softlocks, graphical glitches, or other issues.
Nintendo Switch
Extract the `data` folder (contained in `romfs`) from your console using tool such as [nxdumptool](https://github.com/DarkMatterCore/nxdumptool).
**Important notes:**
- doukutsu-rs doesn't rely on the original ROM or executable, you just need the data files, go to `RomFS options` menu to just extract the files to SD card so you don't need to do any extra steps.
- Ensure you're dumping the files **with update included** (`Use update/DLC` option), as 1.0 isn't supported.
**Nintendo Switch homebrew port specific info**
If you're running the homebrew port (drshorizon.nro) on your Switch, you can avoid the dumping step, doukutsu-rs will
automatically detect and mount the data files if you run it over Cave Story+ in Title Override mode (hold `R` while starting CS+ and launch d-rs from hbmenu).
You can put your own data files in `/switch/doukutsu-rs/data` directory on SD Card, which will be overlayed over RomFS if
you run it in setup described above.
#### Controls
Same controls as the default for freeware and Cave Story+ keyboard.
To change, use the control customization menu or edit `doukutsu-rs\data\settings.json` within your user directory.
| | P1 | P2 |
| ------------------------- | --------- | --------- |
| Movement | `← ↑ ↓ →` | `, L . /` |
| Jump | `Z` | `B` |
| Shoot | `X` | `N` |
| Cycle Weapon | `A and S` | `G and H` |
| Inventory / Skip cutscene | `Q` | `T` |
| Map | `W` | `Y` |
| Strafe | `LShift` | `RShift` |
- `Alt + Enter` - Toggle Fullscreen
- `F2` (While paused) - Quick Restart
#### Screenshots
Freeware
Original CS+
Remastered CS+
#### Credits
- Studio Pixel/Nicalis for Cave Story
- [@Daedily](https://twitter.com/Daedliy) - brand artwork (Icon / Banner / Server), screenshots for this guide.
- [ggez](https://github.com/ggez/ggez) - parts of it are used in `crate::framework`, notably the VFS code.
- [Clownacy](https://github.com/Clownacy) - widescreen camera code.
- [LunarLambda for organism](https://gitdab.com/LunarLambda/organism) - used as basis for our Organya playback engine.