> For the complete documentation index, see [llms.txt](https://aliens404.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aliens404.gitbook.io/docs/aliens404.md).

# Aliens404

**ARC404**

ARC404 is an innovative smart contract that underpins the Aliens404 GameFi project, leveraging blockchain technology to merge the functionalities of ERC-20 and ERC-721 token standards. This hybrid approach enables the game to feature both fungible ($BabyAlien tokens) and non-fungible tokens (BabyAlien NFTs), facilitating a unique gaming experience where players can raise Baby Aliens, feed them, and watch them grow into Adult Aliens. The ARC404 contract serves as the foundation for a rich, interactive ecosystem that blends DeFi and NFT elements in an immersive GameFi environment.