On PS4, you can enable Console Sharing & Offline Play on a friend’s account that owns the game. This lets you play it free — but it requires trust and one shared primary console.
Hello Neighbor has appeared in the PS Plus game catalog. If you subscribe to PS Plus Extra or Premium , you may be able to download and play it at no extra cost. Check the current lineup before subscribing.
You won’t find a permanent free copy of Hello Neighbor on PS4 legitimately. But with PS Plus or a deep sale, you can play it for pocket change — no basement-breaking required.