🎲 Games

Games are initiated by the player, typically via a frontend app. The Gamba on-chain Program will validate each game, ensuring fair play. A random number will then be generated to determine the winner, whether it's the player or the liquidity pool being played against.

Structure

The key components that make up a game are the following:

• pool - The pool (and its underlying token) used for the game.
• wager - The amount of tokens that the player will pay to start the game.
• rng_seed - A cryptographic hash (SHA-256) supplied by Gamba's RNG Provider.
• client_seed - An adjustable, random user seed generated by your browser.
• nonce - A unique, sequential number incremented per bet to ensure a one-time cryptographic hash.
• bet_array - A set of predefined multipliers per game. The RNG selects a resultIndex to multiply the wager and calculate the player's resulting token payout.

Each result on Gamba is fairly, transparently and securely determined using the variables.

Prior to initiating a game, the player receive an encrypted hash of the rng_seed. Since they know the hash in advance, they know that Gamba cannot change it. Meanwhile, the player can change their client_seed via the frontend they're playing on, which will alter the games result. When a game is finished, the player will once again receive the hashed rng_seed for their next game.

Outcomes

The bet is made up of potential multipliers.

After the game begins, the RNG selects a random number from the bet_array, and that number multiplies the player's wager to determine the final payout.

Example of Simple Bets:

• [2, 0]: This simulates a coin toss, where a player either doubles their wager (2x) or loses it all (0x).

Examples of Different Bets:

• [0, 2] - Fair bet with equal odds = allowed ✅
• [1.5, 0.5] - Fair bet with equal odds = allowed ✅
• [0, 0, 0, 0, 5] - Fair bet with varied odds = allowed ✅
• [0, 0, 0, 6] - Player advantage = not allowed ❌
• [0, 3] - Player advantage = not allowed ❌

With simple rules and effective UI design, various arcade-style games like Roulette, Plinko, Crash, and others can be built using the available components.

How is the outcome determined

Simulator