Wortris 

Random letter block will drop down to bottom, just like the tetris game, use left or right arrow key to move the block. When the block drop to the bottom, the correct word(3-8 letters) will be moved. If the new letter block can't drop, game over.
word games puzzle games online games puzzles puzzle software

Lexterity 

Lexterity is a word game where you fill a grid with letters, based on crossword making rules. Single player logical word game, suitable for all ages.
lexterity word games word puzzles xword games scrable scrible skrable scraple word wisard word wizhard word wizard text tvist test twist