Vector Pinball by Brian Nenninger / Dozing Cat Software and contributors, GPLv3. Original nine table definitions, field delegates, scoring, flipper and ball rules retained. Browser presentation by Leaf Arcade, GPLv3. libGDX and TeaVM backend Apache-2.0; Box2D GWT/JBox2D component notices in dependency sources. Sound by Peter Drescher / Twittering Machine; original samples retained. Browser matches are session-only; completed-game best scores are stored locally.