777 Casino: Real Money Games 17+ - App Store

Gambling and luck 777 is used on most slot machines in the 3️⃣ United States to identify a jackpot. As it is considered a lucky number, banknotes with a serial number containing 777 3️⃣ tend to be valued by collectors and numismatists.

What does 777 mean in the casino? - Quora

To play 777, follow the 3️⃣ HOW TO WIN  instructions: Reveal a set of any three like-colored "SEVEN" symbols in a row to win 3️⃣ the corresponding prize for that row. Reveal two sets of three like "SEVEN" symbols in a row to win double 3️⃣ the prize.

777 | A Fast Play Game - Illinois Lottery