# Strongholds

## Summary

<figure><img src="/files/beyN9kOUvlsbtKedSsNq" alt=""><figcaption></figcaption></figure>

* Strongholds are the next-generation NFTs earning *passive revenue rewards* through simply holding these utility assets.
* Earn passive income through **Crypto Mining Rewards**, **Iagon Rewards, NFT Staking Rewards, and Royalty Rewards.**\
  See [**Stronghold Rewards**](/white-paper/strongholds-next-gen-nfts/strongholds/stronghold-rewards.md) for more information.
* Strongholds come in 3 different Size Classes: **Garrison Class** (Small), **Fortress Class** (Medium), and **Citadel Class** (Large).  Larger Strongholds have additional Staking Slots, Reward Multipliers, & unique Sites only available on larger Classes. \
  See [**Stronghold Class & Realms**](https://app.gitbook.com/o/aXr2WKYoHpoOk0MGhWsS/s/9TVL9RLMb8eaTlIXjFYA/~/changes/67/strongholds/stronghold-class-and-realms) for more information.
* Strongholds vary in theme depending on the **Realm** it exists within.  The Realm of a Stronghold applies a **Reward Multiplier.** There are 100\* Specialty Realms & 15 1/1s.\
  See [**Stronghold Class & Realms**](https://app.gitbook.com/o/aXr2WKYoHpoOk0MGhWsS/s/9TVL9RLMb8eaTlIXjFYA/~/changes/67/strongholds/stronghold-class-and-realms) for more information.
* You can **Stake** Titans PFPs with your Strongholds to earn increased & additional rewards!\
  See [**Staking & Raids**](https://app.gitbook.com/o/aXr2WKYoHpoOk0MGhWsS/s/9TVL9RLMb8eaTlIXjFYA/~/changes/67/strongholds/staking-and-raids) for more information.
* Every Stronghold has a set of buildings, called ***Sites**.*  Sites generate their unique rewards after a real-time period of 4-5 days called a “**Cycle**”!\
  See [**Site Details & Bounties**](https://app.gitbook.com/o/aXr2WKYoHpoOk0MGhWsS/s/9TVL9RLMb8eaTlIXjFYA/~/changes/67/strongholds/site-details-and-bounties) for more information.

## Find Out More

* [**Stronghold Rewards**](/white-paper/strongholds-next-gen-nfts/strongholds/stronghold-rewards.md)
* [**Stronghold Class & Realms**](/white-paper/strongholds-next-gen-nfts/strongholds/stronghold-class-and-realm.md)
* [**Staking & Raids**](/white-paper/strongholds-next-gen-nfts/strongholds/stronghold-staking.md)
* [**Site Details & Bounties**](/white-paper/strongholds-next-gen-nfts/strongholds/site-details.md)


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