Unciv is an open-source, lightweight remake of Civilization V for Android and Desktop, designed to be fast, free, and highly moddable.

Unciv is a community-driven, open-source 4X strategy game that serves as a lightweight reimplementation of Civilization V. Written in Kotlin, the project is designed for both Android and desktop platforms (Windows, Linux, macOS) with a focus on speed, minimal file size, and portability. The game reproduces the core mechanics of Civilization V using simplified "lo-fi" 2D graphics, allowing it to run smoothly on lower-end devices without requiring ads, paid DLCs, or microtransactions. It also features robust support for custom mods, allowing players to extend gameplay rules, maps, and assets.