Not really sure where to start with The Mummy slot to be honest. It has so many different features embedded that it almost gets confusing but at least the majority are free spin games. Not too dissimilar to the Pink Panther slot they released in that regard.
I won't go into every feature - there are 8 in total - except to say that they involve things like sticky wilds, expanding wilds, wild reels and more. I'd hazzard a guess that they all pay out roughly the same long-term as the game lets you choose which feature you want - once you have unlocked them all.
The Mummy is really a slot machine that has been built to entertain first, make millionaires second. You'll be hard pushed to win anything more than 100x your bet at any stage of the game but on the plus side, modest profits are realistic expectations and you will get a decent run for your money 8 times out of 10.
Of all the free slots here at freeslots247.net I'd say The Mummy arguably offers the best innovation and most immersive experience but it's not a game I'd want to be playing if I was looking to walk away with a sizeable profit.
One nice touch I should mention is that the Auto Play feature now has the ability to play until you hit the feature. Playtech's autoplay was always annoying in that 99 spins was the max so this is a welcome addition in my book.
The Mummy won't be everyone's cup of tea but to look at, most will agree that it's easily among the best Playtech slots without question.