In this posh casino you'll find tables laid out servicing a wide variety of popular games. The most popular of which you well know, Treasure Troll!

Pull up a seat, relax, the bank will loan you 100 gold pieces to get you started!

There is also a lounge where some people are playing another game. Tables and dice are provided for the players. They play a game called Chicanery. If you wish to challenge someone tables are available.

** How to Play - Treasure Troll **

• All Players make their initial Wagers and roll a single d6, the "Thief". If a player rolls a 1 the thief sneaks in the "Back way", avoiding the traps. The player goes on to the troll!
• All bets close and the Dealer rolls 2d4, the "Traps". If the dealer rolls 7 or 8 the traps are high. All players proceed to the troll.
• If a thief is higher than the traps, the player proceeds. If the traps are higher than a thief the player loses. If a thief matches the traps the payout doubles, as the thief finds the "Hoard".
• The dealer immediately rolls a single d10, the "Troll". If the dealer rolls a 1 the troll kicks, and the players lose.
• Each player must roll a second d6 to escape. Each player may choose to "Dash". If the player chooses to dash they will roll 2d6, and ignore the initial thief roll. If the total is 2 the game is a push. The "Snake" scares the thief away. If a player's total is 11 or 12 they lose, finding the "Maw".
• If the total is more than the troll the player wins. If the troll is more than the total the player loses. If the total matches the troll the player wins and the payout doubles, as the thieves find the "Arrow" to defeat the troll.

Example Game:

https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/21193-treasure-troll-dice-game

** How to Play - Chicanery **

• Find an opponent
• Two players pay an ante and roll a single d6. This is the 'Mark'. Each player has two six-sided dice and one four-sided die.
• The objective is to beat your opponent's total. If you beat your opponent's total and don't exceed 10, or total less than 2, you win. If you exceed 10, you are 'Caught', less than 2 is 'Slow'
• Each player may pay the ante again to roll a d4 either against or onto the opponent, either subtracting the value from their total or increasing their total respectively. This is a 'Trip' or 'Pull'. Anyone may choose to 'Stand', neither tripping nor pulling, nor paying the additional ante.
• Each player then chooses to either roll their second d6 for their total, this is playing 'Straight' or pay the ante again in order to discard the first d6 rolling 2d6 instead (plus any trip or pull), this is using an 'Accomplice'.
• Both players roll for their total. The higher total wins, unless it is greater than ten.
• If the total is a tie, or if both players are either 'caught' or 'slow', the game is a push and both players keep their wagers.

(Variant: Upfront - no additional antes are paid once the game begins when the players choose to play upfront.)

Example Game:

https://www.dndbeyond.com/forums/d-d-beyond-general/general-discussion/21647-chicanery-dice-game

BRaddly waits patiently by his table greeting guests as they enter. He will roll the Traps each day at approximately 24-hour intervals if he has players.

Question: Is this at all linked with the Coliseum?

It can be, I suppose. If you want to gamble Zevryl's funds you may. So long as I don't need to keep track of it.

"Place yer bets." BRaddly calls.

Kinnik Featherstone sits at the table to the left of BRaddly (gonna need a description here, BDads). A little taller than the average kenku, Kinnik sports a deep green silk coat with gold trim, crushed black velvet pants and wine-dark leather boots. He also wears a thin golden diadem with a small emerald at its center. 

"Let's lose some money," says the bird in a high, fluting voice. A single gold coin appears (almost as if by magic) between his fingers as the words "TREASURE TROLL" flash briefly in a bold script above his head. 

(Betting 1GP)

BRaddly? Tall and wiry in a black dress shirt with the cuffs rolled to just below the elbows. He has pale blue eyes, and some significant scruff on a pointed chin and long nose bent slightly to the left.

Go ahead and roll you Thief (1d6)

"We've got a taker. Who's going to join this charming fellow?"

A tall warforged, clad in a bright red cape and a captain's hat, swaggers in after the bird. He flips a gold coin onto the table, then rolls the die(3).

"Alright, time to get broke!"

(I'm assuming the characters literally roll dice here?)

Kinnik caws delightedly in greeting as Cap sits at the table. He picks up an ivory die, considers it for just a moment, and tosses it into the box. 1

"Nice! You always were a sneaky bugger!"

Welcome, welcome! Two thieves come for the hunt. One slips in the back window! The birds off on the right foot.

(Just for fun- I promise Kinnik is just here to play the games:)

Kinnik takes stock of BRaddly (who I can't not picture as Boo Radley from To Kill a Mockingbird) and takes a cursory look around the lounge. Attempting to spot any bouncers, obvious safe locations, etc. 

Perception: 13

(Pretty accurate, in the book he's described with light eyes:)

Access to a vault might be possible through the bank, what those in the business call 'the cage'. A few cashier's sit in a large room in the center of the casino and exchange money through barred windows.

If someone needs to go in there to service the computers spells, a guard shadows them around. They aren't allowed to put their hands in their pockets, and every one I've been in it has an airlock type of entrance, where the inner door won't open unless the outer door is shut and vice versa.

(How prevalent is magic in this fantasy world you're weaving? Are magic users eyed askance? Would a level 10 wizard be a god among men or just another cantrip-thrower?)

Magic is common place. Most people can determine their exact location in moments, translate foreign languages, communicate across great distances instantly, and gain access to all of the accumulated knowledge of the world with a simple gesture. However, people still can't seem to separate facts from opinions, and only believe the information that agrees with their existing notions.

What a nightmarish dystopia you've described!

"Let's see how you gentlemen fair." BRaddly drops a pair of four-sided pyramid dice on the table. Traps: 2.

 "Looks like one wasn't sneaky enough." He collects the captain's coin.

"Can your friend escape the Troll?" Troll: 5

"This one's nearly as big as they come."

"Well, Damn. Let's hope Kinnik fares well with the troll!"

(so the only way to win is to roll a 10? Here goes!)

10

Kinnik grins. A sad trumpet wail traces around the table.