> For the complete documentation index, see [llms.txt](https://docs.lazy.football/lazy-football-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lazy.football/lazy-football-whitepaper/ecosystem-and-economy.md).

# Ecosystem and Economy

## In-Game Currency

Lazy Football's economy revolves around four key assets:

* Gems: The premium currency used for boosting, upgrading NFTs, speeding up construction, and wagering on friendly matches.
* LAZY: The in-game currency used for player salaries, upgrading infrastructure, and buying players on the Market.
* USDC: Used for purchasing Gems and trading NFTs on the Marketplace.
* ETH: Required for transaction fees on the Arbitrum One blockchain.