Book of Champions delivers an exhilarating football-themed adventure on 5 reels from renowned provider Spinomenal. Step onto the pitch and battle for championship glory in this captivating slot that combines the beloved 'book' mechanics with thrilling sporting action. Players can unlock Free Spins featuring powerful Expanding Symbols that deliver spectacular wins up to 5,000x your stake. Experience the ultimate fusion of classic slot gameplay and championship football excitement at 21.