Do PlayStation Plus Discount Purchases Expire When Subscription Ends?

No, content purchased at a PlayStation Plus discount does not become locked out when your subscription expires.

Why

• You Buy, Not Rent: Discounted purchases are full purchases, just like buying without a subscription.
• PS Plus Benefits Are Separate: Subscription provides online multiplayer, cloud saves, and free monthly games—not ownership of discounted purchases.

Once bought, the game/DLC is yours forever, even if PS Plus lapses. You only lose the subscription benefits (online multiplayer, cloud saves, free monthly games) while inactive.