> For the complete documentation index, see [llms.txt](https://docs.cryptodo.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cryptodo.app/smart-contracts/lottery-contract/jackpot-lottery.md).

# Jackpot Lottery

Jackpot lottery - lottery format in which a minimum percentage of players wins a super prize, and the rest of the participants leave with nothing.

For example, 5% of participants take 100% of the cost of all tickets.

You can flexibly configure the percentages of winners and their shares in the CryptoDo constructor interface.

## Why do we need lotteries? 

1\. Prize draws increase the activity of the audience.

2\. An additional source of income. The lottery creator sets a fixed commission for the purchase of tickets in a smart contract.

3\. Attracting a new audience. Prize draws are always a good tool in marketing campaigns.


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