# GRAVE: Miner & Mining
**What is MINING?**
* MINING is earning $ZP or COIN by setting MINERS in MINING GRAVES.
**What is the MINING GRAVE, and how do I unlock it?**
* MINING GRAVES are where players set miners to mine $ZP or COIN. Unlock a GRAVE with SUNSHINE or COINS. More GRAVES = COMBO, which boosts mining earnings.
**What is MINING SPEED?**
* MINING SPEED determines how quickly miners earn resources. Increase it by upgrading miners or activating COMBO.
**What is COMBO, and how do I activate it?**
* COMBO is a multiplier that boosts mining efficiency when players deploy multiple Zombie Miners of the same star level: Same-Star Zombie Miners = COMBO Bonus = More COINS or More $ZP!
* Here's how the COMBO Bonuses work:
* 3 Star 1 Miners = Level B COMBO Bonus
* 4 Star 1 Miners = Level B+ COMBO Bonus
* 2 Star 2 Miners = Level A COMBO Bonus
* 4 Star 2 Miners = Level A+ COMBO Bonus
* 2 Star 3 Miners = Level S COMBO Bonus
* 4 Star 3 Miners = Level SS COMBO Bonus
**What is a ZOMBIE MINER, and how do I get one?**
* ZOMBIE MINERS are the core assets in Web3PvZ's Zombie-to-Earn ecosystem. They come in three varieties: COIN MINERS, SBT MINERS, and NFT MINERS, and are further categorized by three star levels: Star 1, Star 2, and Star 3. The variety of a ZOMBIE MINER determines the type of assets it generates, while the star level dictates the speed of asset production.
* Here's a breakdown of each type:
* **COIN MINERS:**
1. These are the basic miners.
2. Players can place them in the MINING GRAVE to generate in-game COINS.
* **SBT MINERS (Soulbound Token Miners):**
1. Players can convert 3 identical ZOMBIE MINERS into an SBT MINER by spending 200 SUNSHINE..
2. During the Play-to-Airdrop game version, they generate ZGP tokens for players.
3. Important: SBT MINERS are non-transferable and non-tradable.
4. After the $ZP token launches, SBT MINERS will not directly produce $ZP.
* **NFT Miners:**
1. These are created by converting SBT MIENRS using SOUL NFTs, or they can be obtained directly from the ZOMBIE SHOP.
2. They are the primary assets for Web3PvZ's Season I: THE ZOMBIES.
3. They generate ZGP during the Play-to-Airdrop game version.
4. After the $ZP token launches, they can directly mine $ZP tokens within the game.
**What is the difference between SBT MINERS and NFT MINERS?**
* NFT MINERS:
* Transferable and tradable.
* Core assets for $ZP mining after its launch.
* SBT MINERS:
* Non-transferable and account-bound.
* Transitional assets for ZGP mining before $ZP launch.
* Cannot directly mine $ZP after launch.
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