# Okamiden: a work-in-progress Nintendo DS matching decompilation

> Okamiden is being reconstructed as C source for the USA Nintendo DS release, with compiled ARM9 code compared against the original. The project uses ds-decomp, Metrowerks CodeWarrior ARM and objdiff; the author reports three matched ARM9 source units and keeps nonmatching reconstructions separate. Work is at an early stage.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/dothacktranslate/okamiden-decomp>
- Primary source: <https://github.com/dothacktranslate/okamiden-decomp/blob/ee77d1b440123caece660804da12ce53da020561/README.md>
- Catalog page: <https://awesomerea.org/resources/okamiden-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/okamiden-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/okamiden-decomp-case/index.md)

## Requirements & limits

- A legally obtained USA release 0 copy of Okamiden is required.
- The workflow uses ds-decomp, objdiff and the Metrowerks CodeWarrior ARM toolchain.
- The author reports three matched ARM9 source units in an early-stage project.

## Primary sources

1. <https://github.com/dothacktranslate/okamiden-decomp/blob/ee77d1b440123caece660804da12ce53da020561/README.md>
2. <https://github.com/dothacktranslate/okamiden-decomp/blob/ee77d1b440123caece660804da12ce53da020561/docs/decompilation-status.md>
3. <https://github.com/dothacktranslate/okamiden-decomp/blob/ee77d1b440123caece660804da12ce53da020561/src/nonmatching/README.md>

## More in Games

- [oot-vc: decompiling the Wii Virtual Console N64 emulator](https://awesomerea.org/resources/oot-vc-case/index.md) · Case study
- [open-spyro: matching decompilation of Spyro the Dragon](https://awesomerea.org/resources/open-spyro-case/index.md) · Case study
- [Over the Hedge: an ongoing PlayStation 2 matching decompilation](https://awesomerea.org/resources/over-the-hedge-ps2-decomp-case/index.md) · Case study
- [Pac-Man NES Source Reconstruction: seven byte-identical cartridge revisions](https://awesomerea.org/resources/pac-man-nes-source-reconstruction-case/index.md) · Case study
- [Paper Mario: matching Nintendo 64 decompilation for four releases](https://awesomerea.org/resources/paper-mario-matching-decomp-case/index.md) · Case study
- [Paper Mario: The Thousand-Year Door: an early matching GameCube decompilation](https://awesomerea.org/resources/paper-mario-ttyd-decomp-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.