In 21+3 Blackjack you try to beat the Dealer by accumulating a card value total close to, but not over, 21 points. You can also make a 3 Card side bet which pays relative to the combination of your first two cards and the Dealer's up card. The Wizard of Odds

Blackjack is a comparing card game between a player and dealer, meaning players compete against the dealer but not against other players. It is played with one or more decks of 52 cards. The objective of the game is to beat the dealer in one of the following ways: Get 21 points on the player's first two cards (called a "blackjack" or "natural"), without a dealer blackjack; Reach a final score higher than the dealer without exceeding 21; or Let the dealer draw additional cards until his or her hand exceeds 21. Wikipedia

Craps is a dice game in which the players make wagers on the outcome of the roll, or a series of rolls, of a pair of dice. Players may wager money against each other (playing "street craps", also known as "shooting dice" or "rolling dice") or a bank (playing "casino craps", also known as "table craps", or often just "craps"). Wikipedia

Unlike traditional Poker, High Card Flush is a “suits based” card game played with a standard 52-card deck featuring two (2) optional BONUS bets: Flush and Straight Flush. The object of the game is to get a better Flush hand than the Dealer. BEST FLUSH WINS! The Wizard of Odds

Mississippi stud was created to make seven-card stud play better at no limit and pot limit, and is slowly becoming popular for that reason. It is also often played with a betting structure more typical of limit Texas hold 'em: fixed limit with the last two rounds double the limit of the first two. The bring-in should be less than the first-round limit. Initial deal is as in standard seven-card stud. After the first betting round, two upcards are dealt to each player, so each now has two down and three up (so unlike standard stud there is no betting on "fourth street"). A second betting round is followed by one more upcard and a third betting round. Finally, the last card is dealt face up, so that each player ends with two downcards and five upcards. Because each player has five upcards on the last round, straights, flushes, and full houses count as "high hand exposed" for the purpose of determining who must bet first. After the seventh street bet there is a normal showdown. Can also be played with low hands, or high-low split. If three downcards are dealt initially instead of two, with the restriction that no more than two of them can be used in the final hand, this variation is called Murrumbidgee stud. Wikipedia