What do RTP and volatility mean in slots?

rtp slotsBest RTP Slots · 1. Ugga Bugga: 99.07% RTP · 2. Book of 99: 99% RTP · 3. 1429 Uncharted Seas: 98.6% RTP · 4. Marching Legions: 98.12% RTP · 5. Blood Suckers: 98The best on slots with the hhest RTP rates are the ones that give players the best chance to play long enough to win. These are the 10 hhest RTP slots.