When it comes to online slots for big wins, players often gravitate towards games with high RTP (Return to Player) percentages and progressive jackpots. Titles like "Mega Moolah," known for its life-changing payouts, and "Gonzo's Quest," with its innovative Avalanche feature, are popular choices. Additionally, games like "Starburst" and "Book of Dead" offer exciting gameplay and lucrative bonus features. With enticing graphics and immersive themes, these slots not only provide entertainment but also the potential for substantial rewards, making them favorites among thrill-seekers in the online casino world.