The Alpha Dictionary's own Word Games
Here is a potpourri of Crosswords like you wouldn't believe, Word Jungles, Encryptions, and more that educate and delight, created by our own home-grown (but educated abroad) linguists.
Scripple
A game that looks a lot like Scrabble. Available in Dutch or English. The download was safe when we tested it.
A Barrel Full of Words
Jim Wegryn's website with every kind of word play in the book and a couple of appendices he wrote himself.