You know, PC games aren't just for kids. Unfortunately, many adults don't have a lot of time to put into playing games on their computers. That's why, I guess, so many grown-ups fall back on old standbys like FreeCell, Solitaire, or Tetris-like games where you need to line up similar colored blocks/marbles to clear the board.

Two similar games that seem to be just as addictive are Bloobs and Snood. Line up the "cannon" and group together similar shapes to clear the board - it's that simple. Or so it seems. Both games are available in free demo versions.

Both of the free versions can be a little bothersome, though. Bloobs limits the amount of levels you can conquer unless you pay for the software. And the freeware version of Snood includes an intrusive little password-organizer program called Gator that can be difficult to get rid of.