Irish Typing Game is made to help language learners practice new vocab in a challenging (yet oddly thereapeutic) context.
It allows players to create vocabulary lists for their target language, and load them into the game, where they will be challenged according to the game settings they choose.
Of course, the game comes with many libraries pre-installed.
It is named Irish Typing Game, but it is compatible with any language which uses Latin script.
I am not sure as to its pedagogic merits, but at least it is relaxing.
Download Irish Typing Game
Irish Typing Game can be downloaded here.