Higher or Lower, a fun and beginner-friendly Solidity smart contract game!
This project helps you understand how to build, deploy, and interact with a simple on-chain guessing game using Ethereum smart contracts.
it is a simple smart contract where players guess if the next randomly generated number will be higher or lower than the current one.
project github link: https://github.com/aditisaha-ui/higherlower
The mission of this project was to create a simple blockchain-based Higher–Lower guessing game using Solidity. The contract generates a number and lets players guess whether the next number will be higher or lower. Each guess updates the game state and returns whether the player was correct. The project aims to teach basic smart contract concepts such as state variables, functions, randomness, and user interaction. It also highlights the challenges of on-chain randomness and the transparency of blockchain data. Overall, the mission successfully delivers a beginner-friendly game that demonstrates how interactive logic can run on the blockchain.
This project is perfect for Solidity beginners who want to learn:
How to generate pseudo-random values on-chain
How to store and update game state
How to return results and manage simple interactions between players and the blockchain
Improvements
Move secret logic off-chain and only verify results on-chain.
Avoid using block values; rely on oracle-based randomness.
Optimize code to reduce gas costs.
Implement a frontend for smoother gameplay.
Add validations and limits to secure rewards.
Use upgradeable contracts to fix bugs in the future.
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