Game Feature: 20 Pay-Lines
Some of the much older slot machines that you are going to find available online will have been designed as 20 pay-line slots, and there will always be a good mix of them no matter at which online casino site you choose to play at.
Keep in mind though that some of those slots will have optional pay-lines so you can of course put as many of them in play as you like, form one single pay-line up to a maximum of 20 pay-lines, but some of them will be designed as fixed line slots.
When playing fixed line slots then you have no other option but to have in play all twenty of them on each base game spin you play off, but they often come with configurable staking options so you can of course play around with the coin value settings, and can often play more than one coin per line too.
The bonus features often found on those types of slots will be free spins bonus games, and as such there are benefits to be had by playing maximum line spins, for when that bonus game has been triggered you then have 20 lines in live play as each free spin awarded is them playing off.
It is of course your decision to make as to whether you do indeed now fancy setting forth and getting stuck into playing slot games of any description that come with a 20 pay-line playing structure and to make finding them easier below are the ones that can be played online right now.