# Games Smart Contracts

## <mark style="color:purple;">Enhancing Games Integrity with Smart Contract Technology</mark>

In the Luckaton [Randomization Framework](https://docs.luckaton.com/technical-architecture#randomization-framework), blockchain technology plays a pivotal role in achieving secure and transparent random number generation (RNG), crucial for ensuring fairness in games like Dice and Coin Flip. Here's how this sophisticated use of blockchain technology is applied within Luckaton ecosystem:

### <mark style="color:purple;">Utilizing Smart Contracts for RNG</mark>

Luckaton leverages Ethereum smart contracts, programmed to execute RNG in a deterministic yet secure environment. These contracts are designed to interact with various blockchain features and external systems to generate randomness.

#### <mark style="color:blue;">**Smart Contract Execution**</mark>

For each game that requires RNG, a dedicated smart contract is deployed. This contract contains the logic to either generate randomness internally or to call external sources for random values.

<mark style="color:blue;">**Verifiable Random Functions (VRFs)**</mark>&#x20;

Luckaton employs VRFs within its smart contracts. These cryptographic functions not only generate a random number but also provide a verifiable proof that the number is random. This proof can be checked by any participant, ensuring the RNG process is tamper-proof and transparent.

### <mark style="color:purple;">Blockchain Characteristics Leveraging for RNG</mark>

#### <mark style="color:blue;">**Block Hashes as RNG Source**</mark>

Luckaton smart contracts occasionally use the hash of a newly mined block as a random seed. This method capitalizes on the unpredictability of block hashes, derived from block content and miners' work.

#### <mark style="color:blue;">**Commit-Reveal Schemes for Player Interaction**</mark>

In multiplayer games, Luckaton implements a commit-reveal scheme. Players submit encrypted hashes of their random inputs (commit phase) and later reveal these inputs (reveal phase). The aggregated inputs are used to generate a final random outcome, ensuring no single player can influence the result.

### <mark style="color:purple;">Security and Fairness Measures</mark>

Luckaton's framework is meticulously designed to uphold security and fairness:

<mark style="color:blue;">**Security Against Manipulation**</mark>

By combining VRFs, and commit-reveal schemes, Luckaton minimizes the risks of RNG manipulation, ensuring all participants have equal chances.

<mark style="color:blue;">**Transparency and Verifiability**</mark>

Every step of the RNG process, from generation to final outcome, is recorded on the blockchain. This transparency allows anyone to verify the fairness of the game outcomes.

### <mark style="color:purple;">Practical Application</mark>

In a Luckaton Dice game, for instance, the smart contract initiates an RNG request which combine VRF-generated numbers with randomness derived from participant-contributed seeds. The final dice roll outcome is then determined in a manner that is both unpredictable and verifiable, ensuring each roll is fair and the game's integrity is maintained.