> For the complete documentation index, see [llms.txt](https://heroinfinity.gitbook.io/hero-infinity/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://heroinfinity.gitbook.io/hero-infinity/features/nft-staking.md).

# NFT Staking

Players can stake their hero NFTs to earn rewards in HRI token; the earning rewards are calculated in APR. The price of every hero will be evaluated by the NFT mint price, tokens used for level upgrades and skins.

* 1 Hero Price = Hero Mint Price (0.25 ETH) + HRI Tokens used for Level Up & Skinning.
* 1 Hero APR (%) = Multiplier ^ Hero Level \* 100
* Multiplier = 3.2