What are 40 Paylines slots?
40 lines, to players, means more chances for winning combos being formed. While this may be the truth, be aware that it means that you will have to bet double the wager of a 20-line machine.
Paying 40 times the line bet could be quite steep on the maximum wager, although when you realise that you can bet as low as 0.01 coins per line, you can rest assured that it does not have to break the bank every time you spin the reels.