Does Undertale need WiFi or Playstation Plus on PS4?

Does the PS4 version of Undertale need wifi or PlayStation Plus?

I made a mistake by buying PvZ: GardenWarfare on PS4, a game which can't be played without PS Plus.

Also, how can I tell if a PS4 game requires PlayStation Plus?


PlayStation Plus is only required for multiplayer games with online functionality.

Undertale is an offline single player RPG, so it does not require PlayStation Plus.