Complete unmodified Chocolate Doom source, unchanged full Freedoom original release including both campaigns/manuals/credits, minimal browser patch, exact build/adapter/persistence source and exact runtime/library sources. Unpack engine source to artifacts/expansion/freedoom/engine and preserve the pinned input archive there, then run build-freedoom.sh with Emscripten 4.0.23. Source files are explicit downloads, not loaded by gameplay.
Join numbered parts with cat archive.part* > archive. Checksums are in the manifest.
Upstream source · Notices · Readable browser adapter
Shared browser library and Emscripten sources include SDL, fonts/audio/image libraries, zlib, SQLite, Asio and the runtime sources.