Jewel games are fun and exciting. They are much more complex than simply matching three jewels in a row, like you might be expecting.
There are many game screens, with obstacles like frozen blocks, bricks, and gaps in the game areas providing lots of puzzles. Power ups come in handy and do different things - some blow up many jewels or locked squares, some zap entire rows or columns, and some randomly wipe out spaces on the game grid.
There are several different puzzle game modes, and all of them can be very enjoyable depending on your mood. When you want excitement, you play against a timer or for a specific objective. When you are tired and just want to chill out, endless mode and classic mode both offer amusement without the added tension of timers.
These are great online games to play when you need to kill a little time, since you can play a level in just a few minutes, and easily pause the game. It's just as easy to resume, since there's no complicated game mechanics to remember.