Breadth-first search - Game Development
Unity - The multiplatform game creation tools for everyone.
Dijkstra's Algorithm - Game Development
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
Kythera - Kythera is an AI middleware middleware plus development services with a complete solution for AI in games.
AndEngine - AndEngine is a free android 2D OpenGL game engine.