Recomp / OS & system / DoCoMo feature phones

openDoJa

Desktop-focused clean-room reimplementation of the DoJa 5.1 runtime and its APIs, for running i-appli mobile games on a PC.

Clean-room Not stated released

Source code

Stars75

Commits, 30 days0

Latest releasev0.2.5May 28, 2026

Last pushAug 19, 2026

GitHub figures as of 2026-10-14, refreshed daily.

Facts

Original: NTT DoCoMo DoJa 5.1 Java runtime
Platform: DoCoMo feature phones
Method: Clean-room
Provenance: Not stated what this means
Status: released
Licence: GPL-3.0
Team: GrenderG
Started: 2026-03
Runs on: Windows, Linux, macOS
Needs the original: Yes: you supply your own legally obtained copy

How to get it legally

This project ships code only. Build or download it from the official repository, then supply data from a copy of NTT DoCoMo DoJa 5.1 Java runtime you own. Recomp never links to ROMs, discs or game data.

This project was rebuilt clean-room by GrenderG. Facts last checked 2026-10-14.

Sources

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