Cylindrix — unofficial browser restoration, 2026-10-19 Original game: Goldtree Enterprises. Original programmer's release statement: https://www.hardcrawler.com/cylindrix/ Community port: https://github.com/hyperlogic/cylindrix Base commit: ee13bd95036331520181eeefe6f12d0638b1ffe8 Old Games Archive contributes compatibility fixes and browser/player integration. Custom matches and the ten-stage tournament are included. Original sound effects are retained; later MP3 music and tournament movies are omitted. Browser-local pilot records/settings are supported, not mid-battle or campaign checkpoint saves. Physical Android/iOS acceptance remains pending. See the source README for test scope. Download source.zip alongside this file for complete corresponding modified source. Original source headers specify GNU Library GPL v2; upstream root LICENSE contains LGPL v2.1; historical COPYING contains GPL v2. Preserve these separate notices in source.zip/licenses and the source files; no replacement blanket license is claimed. SDL2, libyaml and Emscripten notices are included. ASSET-MANIFEST.json documents original resource provenance and hashes; BUILD.md documents the pinned toolchain.