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Even if the puzzle drives you somewhat insane in the process.

Enter "WordsWorth", an addictive puzzle game for the iPhone or iPod touch developed by Robosoft and published by 99Games Online. Perhaps best described as "Scrabble on steroids", WordsWorth challenges you to use assorted tiles to link words together to earn points to advance to the next of 30 levels.

This process is made more interesting with the addition of blank tiles that can substitute as any letter, timer pieces that can destroy your entire tile library if not used before they detonate and a "Shake" feature in which you can press a button or literally shake the iPhone to receive a new set of letter tiles.

Although not as flashy as some marquee iPhone titles, there's a polish and attention to detail that makes WordsWorth work. Sharp graphics, good detail and an accessible interface create an inviting environment while great sound effects add to the energy of the game and keep you interested in solving the next puzzle.