watchopolis
SimCity, on your wrist. Watchopolis is a Wear OS port of MicropolisCore - the open source release of the original SimCity Classic engine - running the same C++ simulation compiled through the Android NDK, with a new Kotlin and Compose UI built for a round screen.
The interesting part of a port like this is the input model, since there is no room for a toolbar and no second hand to hold the device. The crown cycles through build tools, tap places, drag pans, double-tap steps through the zoom levels down to an overview, and triple-tap changes the game speed.
Kotlin, Jetpack Compose, C++, Android NDK, Wear OSSource & build instructions available on Github.