Using progressive jackpots is another successful tactic. Each player's wager is added to a central jackpot by these machines, which keeps growing until someone wins it. A super free slotsprogressive jackpot can have extremely low odds of winning, but the potential payouts can change someone's life. Playing maximum bets on these machines whenever you can will increase your chances even more, as many progressive jackpots require this in order to be eligible for the top prize. Gaining Success by Understanding Game Mechanics.