Unciv by Yair Morgenstern and contributors, MPL-2.0. Browser fork by YosefLm; Leaf integration GPL-3.0-or-later. Original media: CC BY, CC BY-SA, CC0 and public-domain notices in unciv/docs/Credits.md. libGDX, gdx-teavm and TeaVM: Apache-2.0. Kotlin and dependency notices retain their upstream terms. No Civilization game files are used. Offline solo edition, with multiplayer and mod downloads disabled. Real serialized campaign saves use a dedicated local IndexedDB database. No ads, payments or accounts.