"Book of Fallen" is an online slot game developed by Pragmatic Play that takes players on a thrilling adventure in search of ancient treasures. The game is set in an Egyptian temple and features 5 reels and 10 paylines.The symbols in the game include the classic playing card values of 10, J, Q, K, and A, as well as a selection of Egyptian-themed icons, including a scarab beetle, an ankh, and a pharaoh's mask. The highest paying symbol is the adventurer, who can pay out up to 5,000x the bet for five on a payline.The Book symbol serves as both the wild and scatter symbol in the game. When it appears on the reels, it can substitute for any other symbol to create a winning combination. It also triggers the game's bonus feature when three or more are landed on the reels.During the bonus feature, players are awarded 10 free spins and a special expanding symbol is randomly selected. This symbol can expand to cover the entire reel, potentially leading to big wins. The bonus feature can also be retriggered by landing three or more Book symbols."Book of Fallen" offers players a chance to win big with a maximum payoutof 5,000x the bet. With its exciting theme and potential for big wins, this game is sure to appeal to fans of online slots.