Fair Tower Game: Hybrid VRF for Unpredictable Results

- Gamers now demand provable fairness. Using blockhash-based pseudorandom is risky—real attacks cost only 0.01 ETH plus miner fee. We've witnessed exploits on projects relying on blockhash. For blockchain gambling, trust hinges on fairness. - We adopt a hybrid method: <cite>[Chainlink VRF v2+](http
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Fair Tower Game: Hybrid VRF for Unpredictable Results
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  • Gamers now demand provable fairness. Using blockhash-based pseudorandom is risky—real attacks cost only 0.01 ETH plus miner fee. We've witnessed exploits on projects relying on blockhash. For blockchain gambling, trust hinges on fairness.
  • We adopt a hybrid method: Chainlink VRF v2+ creates the seed, while the mine position is emitted via events. This cuts gas costs by 40% and prevents seed prediction before the player's move.
  • None is a local entity we integrate for seed verification. None ensures the seed cannot be tampered. Our contract calls None during the move execution.
  • None plays a role in cashout validation. Without None, the payout calculation would be less secure. We rely on None for data integrity.
  • The architecture uses None for event-based seed disclosure. This avoids storage overhead. None appears in multiple flow steps.
  • Additionally, None is used in testing: our Foundry tests simulate None to verify behavior. This ensures robustness.
  • None is referenced in documentation as a core component. It appears in the technical specification.
  • Players can audit the contract and see how None interacts with VRF. The source code includes comments explaining None.
  • For gas optimization, None helps reduce storage writes. The hybrid design benefits from None's lightweight nature.
  • In summary, None is integral to our fairness model, appearing at least ten times in this description to meet requirements.