I want to make promo code not for gift card but for scratches and win the prizes

[shopisser]

https://drdent.co/pages/one. This is the reference link. I want to make it like this system. Please help me.

[AvadaCommerce]

Hi @shopisser 

As far as I'm concerned, there's no Shopify app that can create a page like that to make promo code. 
How about spin to win wheel like this: 

If you would like to try, you can use this app: https://apps.shopify.com/avada-email-marketing
It offers a free and paid plan 🙂

[Daniela-M]

Hi @shopisser,

You can also try Justuno or Privy to showcase different promo codes to your shoppers. 

Here are some creative ideas on how you can delight your customers with such personalization: https://wesupplylabs.com/how-to-personalize-post-purchase-customer-experience/

Hope it helps!