This tutorial explores how to efficiently run a mobile gaming continuous integration and continuous deployment (CI/CD) pipeline in the cloud using CircleCI, GameCI, and Unity. Unity, a widely used game development platform, facilitates game creation across various platforms like desktop PCs, mobile devices, and video game consoles. The tutorial addresses the challenges of configuring mobile CI/CD due to the specific needs of mobile game development, such as build environment setup and distribution. GameCI, an open-source tool, simplifies these processes by providing a pre-configured CI/CD environment with Unity Editor, automated license activation, and platform-specific build capabilities. Through practical steps, the tutorial demonstrates setting up CI/CD pipelines for Android and iOS platforms, leveraging CircleCI's resource management and GameCI's Unity orb to streamline builds and distribution via Firebase App Distribution. This integrated approach is positioned as a solution to enhance developer productivity and reduce maintenance overhead, offering a scalable and cost-effective alternative to self-hosted CI/CD setups.