GAME (Genome Annotation Markup Elements) is an attempt to create an extensible DTD for the annotation of biological sequences.
Game is currently at version pre2. Game2 is organized in several documents. The set of common entities and elements can be found at :
The dtds that are built from these entities can be found at :
The older version of GAME is version 1.001. This can be found at:
For a comparison of the two versions, check out The GAME FAQ.