An exciting win or a dull session of 777 slots can be determined by a well-thought-out strategy. Selecting games with higher return-to-player (Rrummy all bonusTP) percentages is one of the best strategies for increasing your chances of winning. The term RTP describes how much money a slot machine is designed to give back to players over time. By choosing 777 slots with an RTP of 95 percent or more, players can improve their chances of winning.