Gaming Components

The difference between a game creation tool, a game engine and a game library are there capabilities.
A game engine is the base for creating and developing video games, they are used to create games for all sorts of systems from computers to consoles and mobile devices. A game creation tool is used in assisting game creation with such tools as converting certain things to models and textures needed by the game. A game library like Allegro allows for game creation by taking care of basic levels of coding usually needed by hand. One example of a game engine is Unreal Engine 4 and one example of a game creation tool is Unity (if it isnt a game engine).