Could we integrate Moralis SDK with PlayCanvas?

Is it possible to create nft dapp games in play canvas?

Looks like they supply a browser version of the library https://docs.moralis.io/moralis-dapp/connect-the-sdk/connect-with-js so yes it is possible.

Add https://unpkg.com/moralis/dist/moralis.js to external scripts in project settings and that will add a script tag to the index.html file in the header before the engine