The legendary lake itself is the backdrop for this slot, it is situated in a large opening of thick woodland with shrubbery growing from each corner. As often in this sort of imagery the entire scene is coated in a thin fog that suggests mystery and wonder. The reels themselves are frames by thick vines that have sprouted from gameplay options at the bottom of the screen, the vines overlap growing up to the game title above the grid. The play options include spin, autospin, coin value, coins, lines and the information menu that are all covered by the same vines as the grid.
Symbols displayed on the reels in Lord Merlin and the Lady of the Lake include the lower value 10-A of royals. These appear to be carved or fashioned out of wood each with a different colour light illuminating it from below. Higher value symbols are more relevant to the setting and can all pay out a small return for a combination of juts 2 across a payline. The lion badge or crest and the wizards hat which can pay out up to 750x the stake for landing 5 across any of the fixed paylines. The next symbol up is the magic staff, this can reward a maximum 2,000x the stake whilst the highest paying main game symbol Merlin holds the lucrative 10,000x the stake main game payout. There is also a Wild Lady of the Lake symbol that can pay as much as Merlin and includes other features, the Scatter symbol in play here is the legendary sword, Excalibur.
The way to landing this 10,000x the stake win is through expanding symbols, they are included in both free spin features. The first feature is accessed by landing at least 3 of the Excalibur Scatters across the reels, this rewards 8 free spins with a random royal or high value symbol expanding on each spin.
During the initial free spins round the Scatter turns into a Wild Scatter, this can pay out eh same as Wild Lady of the Lake symbols and 2 or more are needed to access the Excalibur spins. During this feature the chosen expanding symbol is sticky throughout and can expand, if another 2 or more Wild Scatters land the feature is retriggered which can happen infinitely.