Miles Morales is currently part of the Ubisoft+ Classics or the Games Catalog for PS4 and PS5. If you are a subscriber, you can download and play it at no additional cost.
You can sometimes redeem loyalty points earned through the PlayStation app for digital store credit to "buy" the game for free. 2. Why to Avoid "Free Download" Sites
If you see websites offering a "Free PC Download" or "Mobile Version" outside of Steam, Epic Games, or the PlayStation Store, proceed with extreme caution: