Multi-line Slot machines were the next step after the classic 3 reel Slots. The first Multi-line Slots expanded their capacity to 5 reels. The addition of reels in these Slot Machines automatically determined more paylines than the standard 3 Reel Slot. In fact, there are Video-slots of up to 9, 15, 25 or even 100 paylines in most land based Casinos.

The multi-line Slot machines, as well as the Video-Slots, are usually themed Slots, with graphics and music based on popular entertainers or TV shows. Most of them accept variable amounts of credit to play with 1 to 5 credits per line.

In 5 reel Multi-line Slots, there can be as many as 9 payout lines. In a 5 reel Slot game, the chances of winning compared to 3 reel Slots increases a lot, but the chances of losing increase as well. To win in 5 reel Slot Machines you must have a winning combination of symbols on one or more of the 9 payout lines.

The other types of Slot Machines that are the favourites of Slot fans are the 3 reel classic Slots and the modern progressive Slots