wikigame: USER_PATTERN is not properly defined
USER_PATTERN in pattern.php assumes that everythings go line by line in a resulting file. It is a wrong assumption. Especially for EVALUATED_BY_USER what can appear in any place in the file. Wikigame plugin should probably use some library that parses RDF.
Due to the fact that everything depends on USER_PATTERN, the plugin is not usable in its current state...