IGDB - An open video game database
Lexica - An open source word-search game.
FreeToGame - Your digital game store where everything is free!
Ruzzle - Ruzzle is a fun and fast-paced word game where you can challenge your friends or allow an opponent...
The Visual Novel Database - VNDB.org strives to be a comprehensive database for information about visual novels.
Wordbase - Wordbase - the fun, addictive and challenging game of words and letters for iPhone!