Jewel Quest is a 'match 3' puzzle played on an 8 X 8 grid filled with various tokens, eg. Diamonds, Rubies, Emeralds, Gold Coins, and Skulls. The player may swap any 2 adjacent tiles, as long as it results in making 3 or more of a kind in a row or column. When this occurs, those tiles disappear and tiles above fall into the gaps. If this results in another 3 of a kind in a row, then these disappear etc until a stable situation is reached. Again the player may swap another 2 adjacent tiles etc.
Jewel Quest has 180 levels and is set within the Mayan culture. There are 36 grids and they are played through, in succession, five times, with each play-through adding a new level of difficulty. During the first run-through, "Explorer," the player is given pieces of storyline in the form of "journal entries" to read after completing each grid, with an additional snippet before the beginning of each level. After playing the 36th grid, the totem "speaks" as well there being a written blurb. After the "Explorer" level, new information is given only at the end of the 36th level, and once after playing the 1-2 grid during the second run-through. All other "journal entries" are quotes or sayings to encourage the player. Likewise, if the player fails to complete a level within the time frame, encouraging quotes will be used.
Source: Wikipedia, "Jewel Quest", available under the CC-BY-SA License.