When it comes to payouts, online-based slots are the best slot machine games with the highest payouts. The payout percentage decreases significantly in the case of land-based casinos. Land-based casinos have an average RTP of 75%, whereas their online counterparts have an average RTP of around 95%, which is considerably higher. State-imposed legislation links all slot machines in Las Vegas casinos to a 75% minimum. However, other regulatory bodies in different regions impose strict minimums on physical slots. In the US, for example, Mississippi has imposed an 80% minimum, with New Jersey having an 83% state minimum on all land-based slots. Here in the UK, however, things are a bit different. The regulatory body on all gambling activities, the UK Gambling Commission, hasn't imposed any statutory minimum for physical slots in its jurisdiction. However, the only requirement for the slots is that they must display their RTP percentages on the machines for players to see.