Big Winner, Vikki & Vance

Big Winner, Vikki & Vance is an unmarked quest in Fallout: New Vegas.

Quick walkthrough
The player character needs to play the games that the casino has to offer (Blackjack, Slots and Roulette) until they are banned from gambling in the casino. One can be banned by winning too many games and getting too much money from the casino. During this process, the player character will receive three different prizes from the casino in addition to the chips they have won. Each prize will be given after the player character wins a certain amount of money while gambling. These prizes are usually given by the table manager of the casino.

Detailed walkthrough
Before one can start gambling in the casino, it will need to be re-opened. The casino can be re-opened by completing the My Kind of Town quest followed by the A Team of Moronic Mercenaries unmarked quest. After completing these two quests, wait for 2–3 days and the casino will re-open. As the player character wins the games the casino has to offer, they will be receiving the below rewards after reaching the chip target:
 * 625+ chips: 20 more Vikki and Vance Casino chips
 * 1,250+ chips: Stealth Boy
 * 1,875+ chips: Leather armor, reinforced

After earning 2,500+ chips, the player character will be banned from playing games in the Vikki and Vance Casino. The player character can still use the casino's other functions like the bar, but they cannot gamble on its tables anymore. This ban is permanent.