Whitepaper
MinerBlast — an explosive play-to-earn mining game built on Robinhood Chain.
1. Overview
MinerBlast is a 2D pixel-art idle mining game. Players collect miner hero NFTs that dig through ore blocks with bombs, earning $BLAST — the game's utility token. All game logic that decides rewards runs on an authoritative server, and every asset (heroes, houses, rewards) settles on-chain on Robinhood Chain.
2. Heroes
Heroes are ERC-721 NFTs with on-chain attributes: Power (mining damage), Speed (bombing rate), Stamina (energy), blast range, bomb count and special abilities. There are six rarity tiers:
Common — 52% Rare — 26% Super Rare — 12% Epic — 6.5% Legend — 3% Mythic — 0.5%
Heroes come from chests bought in the Shop with ETH. The odds above are published on-chain in the gacha contract. Heroes can be fused (burning a same-rarity sacrifice plus a $BLAST fee) to level up, and traded on the in-game Market.
3. Game modes
| Mode | Description |
|---|---|
| Treasure Mining | Idle mode: heroes mine ore blocks automatically, spending stamina and earning $BLAST — even while the game is closed. |
| Adventure | Send a hero on an expedition (3 stages of rising difficulty). Success chance scales with hero power; up to 10 attempts per day. |
| Houses | Stamina houses (ERC-721) shelter heroes so they recover energy faster. Bought with $BLAST. |
| Market | Player-to-player trading of heroes and houses, paid in $BLAST with a 4% fee (half of it burned). |
4. The $BLAST token
- Fixed supply of 1 billion, issued via the pons launchpad on Robinhood Chain — a plain ERC-20 the game contracts can never mint.
- The reward vault is pre-funded: the project deposits a share of supply, and creator fees from the token's trading pool (70% of the 1% pool fee) keep topping it up.
- All in-game burns (gacha share, house purchases, upgrade fees, market fee share) go to the dead address
0x…dEaD. - Chest revenue in ETH goes to the treasury, which buys $BLAST back to refill the vault.
5. Earning and withdrawing
Rewards accrue in-game and are withdrawn on-chain with a server-signed voucher (EIP-712). Withdrawal rules protect the economy:
| Rule | Value at launch |
|---|---|
| Minimum per withdrawal | 30,000 $BLAST |
| Cooldown between withdrawals | 24 hours |
| Global daily payout cap | Admin-tuned from live economy data |
Beta phases on testnet run with reduced limits so testers can exercise the full flow quickly; the in-game HUD always shows the live values.
6. Roadmap
- ✅ Private beta on Robinhood Chain Testnet — complete game loop live
- 🔜 $BLAST launch (TGE) on pons + reward-vault funding
- 🔜 External smart-contract audit and Chainlink VRF for the gacha
- 🔜 Public launch on Robinhood Chain Mainnet
- 🔮 PVP arena, seasons and world events
Nothing in this document is financial advice. During beta phases on testnet, rewards and NFTs are test assets with no monetary value.