Fangame Engine
From Mario Fan Games Galaxy Wiki
An engine is the coding for a computer application, particularly one of entertainment, such as a video game. Fangames of Mario Fan Games Galaxy, particularly those made with TGF or MMF, use this term to refer to the coding used in the actual gameplay, although it can refer to any aspect of the coding or all of it as a whole. Engines can be seen in a fairly isolated form as howto's.
