Lexica - An open source word-search game.
Crosswords Arena - Word game, multiplayer and computer players
Quackle - Open-source word game similar to Scrabble. Features a board editor, analysis tools, and artificial intelligence that rivals the best players in the world!
Puzzle Strike - Puzzle Strike is a Puzzle, Board, Single and Multiplayer video game created and published by Sirlin Games.
Tanglet - Tanglet is a single player word finding game based on Boggle.
Wordfeud - A fun multiplayer word game. Who can make the highest scoring words?