Lord Merlin and The Lady of The Lake is a 5-reel, 3-row video slot game with 10 pay lines.

During the free spins, the scatter symbol will change into the Wild scatter symbol. The Wild scatter acts as a wild symbol, and substitutes for all symbols.

In free spins, 2 or more wild scatters trigger the Excalibur spins. Each wild scatters symbol awards +1Excalibur spins. The chosen special expanding symbol locks in and can expand on all Excalibur spin 2 or more wild scatters re-triggers the feature. The game also features an optional Gamble round that provides an opportunity to multiply the total prize on any spin in the main game by correctly guessing the color or suit of a hidden card. The Gamble round can be played up to five times in a row.

The chosen expanding symbol can form winning combinations across non-adjacent reels. If the high-paying symbol is selected as a special expanding symbol at least 2 of those symbols land on the reels, that symbol will expand, and if Royal Symbol is selected as a special expanding symbol at least 3 of that symbol land on the reels, that symbol will expand.

You can attempt to multiply your prize in the optional Gamble round. Press the GAMBLE button after winning a prize to start the round. Your objective is to correctly guess the color or suit of a face-down card. Take your guess by clicking the appropriate button. If you correctly predict the color, you double your prize. If you correctly predict the suit, you quadruple your prize.

You can play the Gamble round up to five times in succession and up to a limit of 2500 coins.