Clannad
Clannad (PC, 2004) has an open-source reimplementation, weimingtom/xclannad_fork, and 1 other public project, including code that decompiles almost back to source.
Data checked 2026-10-12 · unbaked registry
Projects
My xclannad fork for study
OSGC status: semi-playable; development: halted; An engine for running Clannad and Princess Bride on the X Window System, with limited support for other RealLive engine games such as “Tomoyo After”, “Kanojo-tachi no Ryuugi”, and “Little Bu…
Commercial/indie or freeware rlvm game packaged in PortMaster (main) as clannad, updated 2026-04-28; needs user game files
What you need
You need your own copy of the game: these projects ship code only.
Same toolchain
More on PC
Found via opengaming/osgameclones/blob/master/games/x.yaml, en.wikipedia.org/wiki/List_of_game_engine_recrea, PortsMaster/PortMaster-New/tree/main/ports/clann, 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.