Peter Stefcek developed the concept for Colab, a mobile game, as the lead software architect at Pixel Federation. Initial testing of Colab in Unreal Engine was unsuccessful, with frame rates of only 3 FPS. Through extensive profiling, optimization of visibility culling, merging meshes, smart instancing, minimizing shaders, and avoiding fillrate hits, the team was able to optimize Colab's performance for mobile. Communication, networking, and using external profiling tools were also important to the optimization process.