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Lead your band of heroes on a bold adventure into the mythical realm of Dungeons & Dragons Crystal Caverns. Legends describe huge, dazzling caverns containing glittering gems and jewels beyond compare. Defeat hordes of trolls, ogres and skeletons and reap the rewards of incredible treasure.

Play 20 lines of action and enjoy the unique wonder of the Tumbling Reels feature. With the Tumbling Reels feature, symbols fall from the top of the screen instead of spinning down upon a reel. Winning symbol combinations disappear and new symbols tumble down to replace the vanished symbols. You can win many times on the same spin!

Gain entrance into the amazing Crystal Caverns by getting three Bonus symbols on a payline. Inside the caverns enjoy the Tumbling Treasures Bonus starting with 6 free spins on richer reels and the chance to retrigger the Bonus multiple times.

As you battle wave after wave of monsters, reap the rewards of the super scatter feature. All monster symbols pay as scatter pays which can lead to more tumbles and bigger awards. With richer reels and more ways to win, you will want to go on this quest again and again.

Your adventure and fortune awaits in Dungeons & Dragons Crystal Caverns.

How To Bet

Dungeons & Dragons Crystal Caverns provides 20 paylines of action. You can choose how much to bet per line. You can also use Auto Spin to play the game for you.

Line Bet

Displays current bet per line shown in currency. Click the left arrow (with a minus sign) to decrease bet per line. Click the right arrow (with a plus sign) to increase bet per line. Clicking the left and right arrows does not necessarily decrease or increase your line bet in a linear fashion. Rather, your line bet decreases or increases at preset increments which represent the most popular bet amounts.


Displays current number of paylines, which is fixed at 20 paylines.


Click to spin the reels and submit your bet.

Auto Spin Feature

Auto Spin plays the game automatically for a given number of games at the current number of lines and line bet. Once you have selected your desired number of lines and line bet, click AUTO SPIN and choose how many games you want to play. Auto Spin will keep playing the specified number of games until you click the STOP button, or you trigger a Bonus, or your balance is insufficient to spin again.

Tumbling Reels Feature

All paytable-defined symbol combinations trigger the Tumbling Reels feature during regular and Tumbling Treasures Bonus game play. All winning symbol combinations are evaluated and values are added to the win meter.

All symbols in winning combinations disappear. All symbol positions on each reel are filled as symbols tumble from above, in sequence, to fill all empty spaces. The game screen is re-evaluated for symbols in winning combinations and award values are added to the win meter.

The Tumbling Reels feature continues to work until no paytable-defined symbol combinations are created as a result of new symbols tumbling from above.

Tumbling Treasures Bonus with Super Scatter

You can trigger the Tumbling Treasures Bonus by getting three Bonus symbols on a payline. You can only trigger the Bonus once on a given play of the reels.

Upon triggering the Tumbling Treasures Bonus, you receive 6 free spins.

During the Tumbling Treasures Bonus, you can retrigger the Bonus multiple times. Your Tumbling Treasures Bonus continues until you have 0 spins remaining, or until you have played 300 free spins. To retrigger the Tumbling Treasures Bonus, you need to get 3, 4, or 5 Bonus symbols anywhere on the Tumbling Treasures Bonus reels.

If you get 3 Bonus symbols, you win an additional 2, 3, or 4 free spins.

If you get 4 Bonus symbols, you win an additional 4, 6, 8, or 10 free spins.

If you get 5 Bonus symbols, you win an additional 6, 8, 10, 12 or 15 free spins.

Your bet per line in the Bonus is equal to the bet per line on the reel spin that triggered the Bonus.

In the Tumbling Treasures Bonus, the reels are richer and there are more ways to win. In additional to paying on lines, all monster scatter symbols pay a super scatter award as well. For these super scatter symbols, you only need to get 3 or more of the same symbol anywhere on the Tumbling Treasures Bonus reels to win! See the paytable for details.


Graphics Quality

  • BEST mode - Graphics look best, but performance may suffer.
  • HIGH mode (default) - Optimal graphics and performance setting.
  • MEDIUM mode - Lower quality but increased performance.
  • LOW mode - Degraded graphics, but smoothest animation performance is achieved even on slower computers.


Misuse and malfunction voids all pays and plays.

All line pay symbols must appear on a played line and on consecutive reels, beginning with the far left reel.

Only highest winner paid on each payline. All payline wins occur on bet lines only. Line wins are multiplied by the line bet on the winning line. Coinciding wins on different paylines are added.

Only highest scatter win is paid per scatter symbol. Coinciding scatter wins from different scatter symbols are added. Scatter wins are multiplied by the total bet.

Only highest super scatter win is paid per scatter symbol. Coinciding super scatter wins from different super scatter symbols are added. Super scatter wins are multiplied by the coin value.

Super scatter awards are independent from payline awards and are also added to the total amount paid.

Awards are shown in currency.

Regardless of your bet size, there is an award cap on any single transaction. See the paytable for details. A transaction includes the results of the Tumbling Treasures Bonus plus the outcome which launched the bonus. If the award cap is reached in the Bonus, the Bonus may end early before all free spins have been completed.

Additional Information

Expected Payback

In accordance with fair gaming practices required in most legal jurisdictions worldwide, each and every game outcome is completely independent. The odds of getting any particular outcome are always the same.

The odds do not vary based on prior outcomes, bet size, balance size, time of day, day of week, etc. For example, if the top award is won on a given play of the game, the chances of winning the top award on the next play are exactly the same. Likewise, prior losses do not change future odds.

The expected payback reflects the theoretical return across a very large number of plays by numerous players over an extended period of time. For this game type, the long-term theoretically expected payback can potentially be from 92.36% to 94.94%. For the specific version of this game actually operating on PlayNow, the long-term theoretically expected payback is 94.94%. The results for any given player over a play session can vary widely from this long-term, expected average in either direction. The fewer the number of games played, the wider the normal variance of actual payback that may be experienced.

Intellectual Property

DUNGEONS & DRAGONS, WIZARDS OF THE COAST, and their respective logos are trademarks of Wizards of the Coast LLC in the USA and other countries. © 2011 Wizards of the Coast LLC. Licensed by Hasbro.

All trademarks are registered trademarks or pending trademarks of IGT and/or its licensors in the U.S. and/or other countries. Copyright © 2013 IGT. All rights reserved.