In most cases, they will have a 3x3 layout and a bit limited options. These classic 3-reel machines are like a blast from the past. One of the examples is Invaders Megaways of 2021 with a 96.3% payout rate, high risk, and the range of paylines between 168,070 and 1,000,000. Mainly, this parameter is built in new projects from Williams Interactive. As the company has produced over 150 online WMS slots, it comes as no surprise that they vary a bit.
