When it comes to online casino slots, players seeking big wins should explore games with high return-to-player (RTP) percentages and progressive jackpots. Titles like "Mega Moolah," known for its life-changing payouts, and "Gonzo's Quest," featuring innovative gameplay and bonus features, are popular choices. Additionally, slots with frequent free spins and multipliers, such as "Starburst" and "Book of Dead," can enhance winning potential. Always remember to play responsibly and take advantage of welcome bonuses to maximize your chances of hitting it big!