Sherlock Holmes is one of the most popular fictional detectives created by Arthur Conan Doyle. He has featured in several movies and television series as well. Some of the leading software providers like Playtech and IGT have online slots starring the legendary private eye. The Yggdrasil video slot is called Holmes and the Stolen Stones. You can play this slot game at online casinos like InterCasino.

The slot game has the standard structure of 5 reels and 3 rows with 20 fixed paylines. The reels are set in a foreboding background of the London fog. Sherlock Holmes smoking his familiar pipe awards the highest line payouts. The next highest payout is awarded by his friend and chronicler Dr Watson. There are symbols that fans of Sherlock Holmes will recognise from his adventures. These include the magnifying glass that Holmes used to search for clues and the leather folder containing the doctor’s manuscripts of the cases. The low paying symbols are ornately designed playing card suits. To move the case of the stolen stones forward shards of a diamond may appear on any reel. These will get collected above that reel.

The bonus features are triggered through the keyhole symbols. Three or more blue keyhole symbols trigger the bonus game on the second screen. Four of these symbols award in addition a bonus prize of 1,000 coins and five of these symbols award a bonus prize of 10,000 coins. You are taken to a warehouse where you have to select from the crates displayed. Each selection will reveal one of three items. A bag of coins will award a bonus prize. A shard of diamond will be transferred to your collection above the reels. A smoke bomb will end the bonus feature. Three or more golden keyhole symbols will award 10 free spins in which all payouts are multiplied three times. Four and five of these symbols award in addition bonus prizes as before.

The shards of diamonds above each reel will be of the same colour. When you collect five shards above any reel, either through the bonus game or through the reel spins, they will merge to create a complete diamond. There is also a progressive jackpot ticker above each reel. The first reel has the smallest jackpot and the fifth reel has the largest jackpot. Once you complete forming a diamond on a reel then you will be awarded the corresponding progressive jackpot.