Game, procedural artwork, vector lettering, bullet patterns, music and sound effects: Kenta Cho, 2004. D/WebAssembly reboot: Remi Gillig, 2020. Browser adaptation: Socialure, 2026.
Browser runtime: Socialure, 2026 (BSD-2-Clause). D ABI declarations: Digital Mars, 2000–2011, Walter Bright and Sean Kelly (Boost-1.0).
The inherited Adam D. Ruppe runtime is not included in this build. No SDL, SDL_mixer, TinyXML, dxml, BindBC, external fonts or original prebuilt binary are shipped in this browser build.