# Packs and Crates

- [Role Selector](https://zombecoin.gitbook.io/zombiecoin-whitepaper/packs-and-crates/role-selector.md): Roleselectors contains one of two role cards which can be merged together with a Villager character to create either a new Explorer character or a Zombie Miner character.
- [Egg Incubator](https://zombecoin.gitbook.io/zombiecoin-whitepaper/packs-and-crates/egg-incubator.md): An 'Egg Incubator' contains one random pet NFT. Pets are used for hunting (if the player has the corresponding land level) and for PvP battles in the 'Pet Wars: Arena'.
- [Crate of Materials](https://zombecoin.gitbook.io/zombiecoin-whitepaper/packs-and-crates/crate-of-materials.md): These crates contain a wide variety of materials of varying rarity, from the most common to the ultra-rare. They are primarily obtained from monthly quest milestones, rewards, and referrals.
- [Lost Treasure Chests](https://zombecoin.gitbook.io/zombiecoin-whitepaper/packs-and-crates/lost-treasure-chests.md): Information about the treasure chests players can find while Exploring.
- [Christmas Boxes](https://zombecoin.gitbook.io/zombiecoin-whitepaper/packs-and-crates/christmas-boxes.md): Boxes to celebrate the holiday! Contains a random variety of assets.


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