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A re-implementation of Cave Story (Doukutsu Monogatari) engine written in Rust.

The project is still incomplete and not fully playable yet. Click here to see the current status of the project.

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This repository does not contain any copyrighted files.

For better user experience, pre-built binaries are distributed with slightly modified freeware game files.

doukutsu-rs should work fine with pre-extracted and tweaked data files from this repository, NXEngine(-evo) extracted freeware data files and Cave Story+ data files.

Vanilla Cave Story does not work yet because some important data files have been embedded inside the executable. and we don't have a loader/extractor implemented yet.

Freeware

• https://github.com/doukutsu-rs/game-data - Freeware game data distributed with CI builds, based on those two below.
• https://github.com/Clownacy/CSE2/archive/enhanced.zip - copy game_english/data from archive to the runtime directory (place you run the executable from, usually project root)
• https://github.com/nxengine/nxengine-evo/releases/download/v2.6.4/NXEngine-v2.6.4-Win32.zip - copy NXEngine-evo-2.6.4-xxx/data from the archive to runtime directory

Cave Story+

• SDL version (first released in 2011 on Steam)
  • PC release (Steam) - Copy data folder from installation directory (guide for Steam) to the runtime directory.
  • PC release (Epic Games Store) - Essentially the same thing as with Steam version.
  • PC release (Humble Bundle) - Essentially the same thing as with Steam version.
• KAGE version (first released in 2017 on Switch)
  • PC release - Sadly not there yet but Tyrone mentioned it's coming in 2021.
  • Switch release - (tested only with eShop version) Extract data directory from romfs. Requires a hacked console and a recent and legal copy of the game. If you don't know how, look in Google how to exactly do that because the methods really differ.

Freeware data files:

Cave Story+ data files:

• Studio Pixel/Nicalis for Cave Story
• ggez - we took few bits from it while moving away to SDL2.
• @ClayHanson_ - for letting us use his .pxchar skin format from Cave Story Multiplayer mod.
• Cave Story Tribute Site - has lots of useful resources related to the game.
• Clownacy - widescreen camera code.
• LunarLambda for organism - which is being used by us as .org playback engine.
• @uselesscalcium - Android port icon artwork