# Overview

Doki Doki is a web3 platform that enables the creation of provably-fair NFT Gacha machines on the blockchain, which simplifies the process of launching a randomized NFT sale for projects, artists, and collectors.

Gacha machines are highly customizable smart contracts that dispense randomized NFTs in exchange for tokens.

Popular use cases include:

* fairly distributing in-game items
* launching a collectible NFT series
* reselling a batch of NFTs

Doki Doki is permissionless and non-custodial, so you can use Gacha however you like.

![](https://3490508129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M_aL7C05HrAJjsqdz--%2Fuploads%2FltmGR7lVneSAEtMVuGfk%2Fimage.png?alt=media\&token=e280fdaf-0d12-4668-b9e2-9c9f053ebb54)

### Core Components

* **The Gacha Protocol** - a set of smart contracts that enable the creation of on-chain Gachas
* [**dokidoki.com**](https://dokidoki.com/) - The official interface for interacting with the Gacha Protocol, which includes The Gacha Factory, The Gacha Marketplace, Collection Manager, and more

![](https://3490508129-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-M_aL7C05HrAJjsqdz--%2Fuploads%2FVeVZr0YKvwI2ldeBqu1q%2Fimage.png?alt=media\&token=24afaf39-b836-4d0e-8e9b-76a85d3e5ec4)

Doki Doki is initially available on Polygon, with plans to go multi-chain this year.


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