Nimmer's LetterTris is a tetris-like game with letters which have to be stacked so that they build words. In 3+1 (add your own) languages. Shareware $20. 30 days trial. By NimmerSoft..
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Nimmer's WordTris 2.5 Nimmer's WordTetris is a tetris-like game where you have to write the answer (translation-synonym-antonym) before the falling words hit bottom and fill up the WordWall
Nimmers Star Words 2.0 Nimmer's StarWords is an EduGame where you have to make words by catching FallingStars before they get swallowed up by the BlackHole