The problem it solves

🎰 MetaBet — A Fair & Fast Blockchain Casino Built by Us

MetaBet is our take on a decentralized online casino. We built it on the Base Sepolia testnet, and it lets you play fun, classic games like Dice, Mines, and Plinko — all powered by smart contracts.

No central system, no shady stuff. Every action — placing bets, deciding outcomes, giving payouts — runs on-chain. Just connect your wallet and play. It’s transparent, fast, and most importantly, fair.

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🧩 What Problem Are We Solving?

While trying out some online casino platforms (Web2 and Web3), we realized a few annoying issues:

• ❌ Can you really trust them?
  Most platforms are centralized. You have no clue what’s happening behind the scenes — is the game fair? Who knows.

• ⛽ Gas fees suck.
  On Ethereum mainnet, sometimes the gas fee is more than your actual bet. That just kills the fun.

• 🕒 Slow payouts.
  Even if you win, you’re stuck waiting for your payout. Kinda ruins the vibe.

• 🔄 Too many random tokens.
  Some platforms use weird in-game tokens you have to manage or swap. It’s confusing and totally unnecessary.

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💡 What Makes MetaBet Different?

We tried to keep things simple, fast, and fair. Here’s what we did differently:

• ✅ Everything’s on-chain
  Every bet, win, or payout goes through smart contracts. You can actually see what’s happening.

• ⚡ Fast & cheap gameplay
  Thanks to the Base network, games run with super low fees and almost no delays.

• 💸 Instant payouts
  If you win, you get paid instantly. No waiting, no middlemen.

• 🪙 One token only
  Everything runs on Base ETH. You don’t need to deal with multiple tokens or in-game currencies.

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Thanks for checking out !

Challenges we ran into

• Syncing blockchain data with the UI and handling wallet interactions took time to get right.

• I wasn't familiar with Base’s OnchainKit and related SDKs initially. Understanding how they work and integrating them properly into the dApp required a lot of trial and error.

• While writing smart contracts, I faced the common "stack too deep" error in Solidity, especially while handling games like Mines and Plinko with multiple parameters. I had to refactor the code and split logic into smaller functions.

• Designing the profit system and game rewards was another challenge:

  • Dice: Had to carefully balance win probabilities and multipliers to ensure fairness and sustainability.
  • Mines: Implemented a dynamic reward multiplier based on how many safe tiles a user reveals.
  • Plinko: Defined multipliers based on final slot positions, making sure the odds and returns were balanced.

• Fine-tuning the economics of each game (like platform profit margins vs. player rewards) involved multiple iterations and on-chain testing.