Robbo
Robbo (Atari 8-bit, 1989) has an open-source reimplementation, bomblik/GNU_Robbo_PSVITA_PSP, and 1 other public project, including an official source code release.
Data checked 2026-10-12 · unbaked registry
Projects
GNU Robbo for Playstation Vita and Playstation Portable, GekiHEN contest entry
In PortMaster (main) as 'GNU Robbo' (gnurobbo), updated 2025-10-04; ready-to-run
Playdate port of Robbo, the 1993 DOS puzzle game, reconstructed from the original C source
Playdate port reconstructed from original C source.
What you need
You need your own copy of the game: these projects ship code only.
Same toolchain
More on Atari 8-bit
Found via PortsMaster/PortMaster-New/tree/main/ports/gnuro, PortsMaster/PortMaster-Info/blob/main/ports.json
GitHub data checked 2026-10-12. Notes are summaries from the research pass; the project pages are the authority.