Enigma 1.30 — Daniel Heck and the Enigma contributors. Original engine, complete puzzles and artwork: GPLv2 or later; original COPYING, README and ACKNOWLEDGEMENTS retained. Combined browser build selects GPLv3 or later (GPL-3.txt) for compatibility with Xerces-C++ 3.3.0 (Apache-2.0) and browser persistence. Exact notices for original bundled Lua, ENet, Zipios++, OxydLib, tinygettext, fonts and graphics are in ACKNOWLEDGEMENTS, DEBIAN-COPYRIGHT.txt and the corresponding source. Fonts include Bitstream Vera and DejaVu with their separate permissive terms. Original nine Ogg tracks are retained under the project distribution terms; eight Enigma2007 tracks credit Clifford J. Tasner and esprit.ogg is the original menu music.
Disclosed audio changes: the upstream README acknowledges uncertain origins for legacy effects; Debian removes Pentagonal Dreams because its copyright is unclear. All 36 original WAV effects and that S3M song are excluded from runtime AND corresponding source. Leaf Arcade independently authored 52 synthesized effects (including previously missing referenced cues) and the new Leaf Marble Grove menu score, with no imported recording or borrowed melody. Those replacements and their editable Python generator are dedicated under CC0-1.0, CC0-1.0.txt; AUDIO-REPLACEMENTS.json records old/new hashes. All level definitions, gameplay physics, images, fonts and retained Ogg tracks are byte-for-byte original. ASSET-LEDGER.json identifies all runtime files and the disclosed changes.
Leaf Arcade browser adapter, 9 October 2026, GPLv3 or later: original native SDL2 engine compiled to WebAssembly, checked demand-loaded assets, bounded local saves, ordinary native relative mouse/keyboard/button events, fitted fixed framebuffer, frozen clock/audio pause and native Quit on Stop. Native Robinson mode disables Internet dependencies. No game server, account or hosted inference is required. Emscripten 4.0.23 and all linked browser libraries have their complete matching sources and notices in source/. fflate is MIT; its source/license is in the integration archive.