While a three-reel slot has fewer lines, that doesn’t mean the odds of winning are worse. All slots are engineered to run with a return to player or RTP total that is fair and suitable. The RTP should be consistent to where players will have a fair chance at getting a good payout for winning. That means you could get a substantial payout on a three-reel slot, just like what you might get out of a five-reel model.